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HP 465A User's Manual

1. 342014 obd 1510 0010 1510 0011 B 1493 2N398B obd 2N3391 2N3053 obd U112 D3072 obd SZ10939 224 UPE 70RE UPE ORE 3AG TL 15 100 obd G 326 83050 A 83054 B 5000 0700 2000 0711 5020 0700 5040 0234 5040 0235 5040 0700 5060 0700 5060 0709 5060 0727 5060 4916 KH 4147 9100 0343 3100 15 101 00465 00101 00465 00102 00465 00201 00465 00202 00465 01201 00465 66501 00465 90000 Model 465A DD Pop di B pe peck porn puoi oo un fund ani ge qua rm o en orti ta or mA rd pe por polo ze END e 01775 1 Model 465A CODE LIST OF MA APPENDIX NUFACTURERS Sheet 1 of 2 Appendix A The following code numbers are from the Federal Supply Code for Manufacturers Cataloging Handbooks H4 1 Name to Code and H4 2 Code to Name and their latest su fements The date of revision and the date of the supplements used appear at p the bottom of each page Alphabetical codes oa been arbitrarily assigned to suppliers not appearing in the H4 handbooks Codo Ne 00090 10136 09213 00334 00335 00373 00656 00113 29781 00815 00453 99866 00891 91121 01238 01281 91295 01349 01561 01598 01930 91961 02114 02286 02669 92735 92771 02777 93508 63705 63797 03877 03888 93954 030669 04033 04062 04222 04298 64354 04404 455i 64113 04732 04773 04717 04798 91811 04879 05058 05277 05347 03593 05616 05624 05728 05729 9
2. il HEWLETT i PACKARD CERTIFICATION The Hewlett Packard Company certifies that this instrument was thoroughly tested and inspected and found to meet its published specifications when it was shipped from the factory The Hewlett Packard Company further certifies that its calibration measurements are traceable to the U S National Bureau of Standards to the extent allowed by the Bureau s calibration facility WARRANTY AND ASSISTANCE All Hewlett Packard products are warranted against defects in materials and workmanship This warranty applies for one year from the date of delivery or in the case of certain major components listed in the operating manual for the specified period We will repair or replace products which prove to be defective during the warranty period No other warranty is expressed or implied We are not liable for consequential damages For any assistance contact your nearest Hewlett Packard Sales and Service Office Addresses are provided at the back of this manual I OPERATING AND SERVICE MANUAL HP PART NO 00465 90000 MODEL 465A AMPLIFIER SERIALS PREFIXED SII Copyright Hewlett Packard Company 1965 Printed MARCH 1965 Hr Dd a Nas Fi tone em um u 01775 1 Model 465A Table of Contents List of Tables and Illustrations TABLE OF CONTENTS Section Page Section Page I GENERAL DESCRIPTION 1 1 V MAINTENANCE ooo Vu wow DeL 1 1 Description 2 s Go
3. 6800 ohms 1005 1 2 w 15 K ohms 10 1 2 w fxd comp 4700 ohms 10 1 2 w var comp lin taper 50 K ohms 30 0 10 w fxd comp 82 K ohms 5 1 2 w fxd comp 5600 ohms 1065 1 2 w fxd comp 4 7 ohms 5 1 2 w fxd comp 3300 ohms 10 1 2 w SII IIA fxd comp 33 ohms 5 1 2 w fxd comp 300 ohms 4595 1 2 w fxd comp 1000 ohms 10 1 2 w fxd comp 8 2 ohms 1095 1 2 w SS R fxd 49 9 ohms 21 Not Assigned fxd comp 12 K ohms 1005 1 2 w fxd 6 81 K ohms 1 fxd 12 1 K ohms 1 var comp lin taper 5 K ohms 30 0 15 w fxd comp 3300 ohms 210 1 2 w SIA PF fxd comp 150 ohms 10 1 2 w fxd comp 15 K ohms 110 1 2 w fxd comp 10 ohms 1075 1 2 w DID Not Assigned C fxd alum elect 10 100 Not Assigned C fxd ceramic 0068 uf 2 1000 vdew Lamp glow Fuse cartridge 0 15 amp Coil R F Not Assigned Transistor germanium PNP Not Assigned R fxd comp 4700 ohms 10 1 2 w R fxd comp 33 K ohms 10 1 4 w See introduction to this section Section VI Table 6 1 6 3 Section VI Model 465A Table 6 1 Table 6 1 Reference Designation Index Cont d REFERENCE hy PAR EN BHSIONETION Ce T NO DESCRIPTION NOTE C J S1 3101 0037 Switch toggle SPST 3 amp S2 3101 0033 Switch slide DPDT S3 3101 0038 Switch toggle DPDT 3 amp TI 9100 0343 Transformer power WI 8120 0078 Cable Ass y Power black extra limp
4. 72092 12136 71701 12354 72619 22656 12659 12758 72765 02825 72928 72964 12587 73061 13076 73138 Menufocturer Address West Concord Mass New Rochelle Y Carlstadi N 5 Lancaster Pa Palo Alto Calif wensboro Ky General Radio Co Grios Reproduzer Corp Grobe Fite Co of America inc Helsi ton Watch Co Hewlett Packard Co amp E Receiviag Tube Dept Lecirohm inc Chicago HI Stanwyck Corp Hawkesbury Ontario Canada P R Mallory amp Co Inc Indianapofis lad Mechanical ladustries Prod Co Axion Ohio Miniature Precision Bearings Inc Keene N H Muier Co Chisago tti C A Norgres Co Englewood Colo Ohmite Mfg Co Skokie FL Folarsid Sorp Cambridge Mass Precision Thermometer aad Inst Co Rayiheos Company Rowan Controller Oc Ward Leonard Electric Shailcross Mfg Co Simgsos Etectrie Co Soaotose Carp Sorenson amp Co Inc Seavldisg Fibre Co Hc Spragse Electric Ca Telex Inc Thomas 4 Betis Co Trippiatt Electrical Inc Union Switch and Signal Div of Westinghouse Air Brake Co Universal tectric Lo Werd Leonard Electric Co Mt Vernon NY Western Electric Co inc New York NY Weston Inst Div of Baystrom inc Newark amp J Witiek Masufactoring Co Chicago 23 III Woiiensa amp Optical Co Rochester 8 Y Alles Mfg Co Harfferd Scan Affies Control Co iac New York N Y Allmetat Screw Prod Co ine Garden City N Y Prifadelpkia Pa
5. Calif 15909 The Daven Co Livingston Nb 16037 Speuce Pine Mica Co Sgtuce Pine N 16352 Computer Diode Corp Legi Nd 16588 De Jur Amsco Corporation Long islang Cily NY 16758 Deleo Radio Div of G M Corp Kokomo ind 17309 Thermonetics inc Conogs Park Calif 17474 Tiaeex Compaay Mountain View Selif 18486 Radio Industries Ses Pleines ill 18583 Curtis Instrument tne Mt Kisco X Y 18873 t DuPont and Co int Witmiegton Bel 19315 Echipse Pioseec Div of Bendix Aviation Corp Teterboro N J 19560 Thomas A Edison industries Div of McGsaw Edison Co West Orange NS 3570 Electra Manufacturing Co Xaasas City Mo 20153 Electronic Tube Cora Phifadeiphia Pa 2 226 Executive lac New York N Y 2 529 Faastee Metallurgical Coro No Chicago HI 21335 The Fefair Bearisg Co New Britaie Conn 21984 Fed Tetephone aed Radio Corp Clifton N H 24446 Genesai Electric Co Schenectady N Y 24455 G E Lamp Division Nela Park Cleveland Chio 9901539 Revised February 1965 Address Code No 24655 25365 26462 28392 28480 3173 35434 36186 37942 38543 40926 42190 43950 15555 47904 48629 49986 32099 63743 58294 55026 55533 55938 36137 56289 59446 5573 68741 61775 62119 63743 64359 55092 66295 66346 79276 76303 70319 79485 70563 20903 19998 1002 nor n2zi8 71286 11313 71406 37438 71459 11458 nl 71482 74556 11816 NIGI 71144 11753 71785 71884
6. Hardware Co ine New Rockelie N Y Beede Elecicical festrument o Inc Penacook N H 8 Semcor Division of Nuclea Cora of America Phoenix Arizona Torrington Mfg o West Div Yan Kays Catif Kelvig Electric Co Van Nuys Calif Yosngwssd Pa San Matec Calif Susayvale Salit Cleveland Ohio Rocaterd ill Code No Manufacturer 07115 Corning Glass Works Electronic Comacnests Dept Bradford Pa BIT Digitran Da Pasadesa Cai G7137 Transistor Electronics Corp Misseapotis Mins 07139 Westinghouse Electric Corp Elestronie Tube Div Eta N Y 67345 Filmohm Corp New York E Y 07233 Cinch Graphik Co City of Industry Calif 0726 Avaet Corp Los Angeles Calif 67263 Fairchild Semiconductor Carp Mountain View Caf 07322 Misnesols Rubber Co Minneapolis Minn 0738 The Bistcher Corp ies Angeles Calif 67700 Technical Wire Predacts Springf eid Nu 07910 Continental Device Corp Hawthorse Caff 27933 Rheem Semiconductor Corp Movatain View Calif 67966 S hock ey Semi Conductor Laboratories Palo Alto Calif 67986 Boonton Radio Cero Bocetos N Gah U S Engineering Co Los Angeles Calif 08239 Blins Dalbert Co Pomona Calif 68359 Burgess Battery Do Niagara Falls Ontario Canada 08737 Sloan Company Burbank Calif 98718 Cannon Electric Go Proenia Div Phoenix Ariz 60792 CBS Etectranics Semiconductor Opezatiozs Div of C 8 S 480 Lowall Mass 08984 Mei Rain indiacapolis ind 099
7. P O Box 376 Galata Istanbul Tel 49 40 40 UNITED KINGDOM Hewlett Packard Ltd Dallas Road Bedford Engiand Tet Bedford 68052 VENEZUELA Citec C A Edif Arisan 0f 4 Avda Francisco de Miranda Chacaito Apartado del Este 10 837 Caracas Tel 71 88 05 YUGOSLAVIA Belram S A 83 Av des Mimosas Brusseis 15 Belgium Tel 35 29 58 For Sales and Service Assistance in Areas Not Listed Contact IN EUROPE Hewlett Packard S A 54 Route des Acacias Geneva Switzerland Telephone 022 42 81 50 Telex 2 24 86 Cable HEWPACKSA 1 65 IN LATIN AMERICA Hewlett Packard Inter Americas 1501 Page Mill Road Palo Alto California 94304 U S A Telephone 415 326 7000 TWX 910 373 1267 Telex 033811 Cable HEWPACK ELSEWHERE Hewlett Packard international Marketing Department 1501 Page Mili Road Pato Aito California 94304 U S A Telephone 415 326 7000 TWX 910 373 1267 Teiex 033811 Cable HEWPACK
8. Yewell Sales Division Middiesex Turnpike Burlington 01804 617 272 9000 TWX 710 332 0382 MICHIGAN Detroit 48235 Hewlett Packard Crossley Sales Division 14425 West Eight Mile Road 313 342 5700 TWX 313 342 0702 MINNESOTA St Paul 55114 Hewlett Packard Crossiey Sales Division 842 Raymond Avenue 612 646 7881 TWX 612 551 0055 MISSOURI Kansas City 64131 Harris Hanson Company 7916 Paseo Street 816 444 9494 TWX 816 556 2423 St Louis 63144 Harris Hanson Company 2814 South Brentwood Bivd 314 647 4350 TWX 314 962 3933 NEW JERSEY Ashury Park Area Hewlett Packard Robinson Sales Division Shrewsbury 201 747 1060 Englewood 07631 Hewlett Packard RMC Sales Division 391 Grand Avenue 201 567 3933 NEW MEXICO Albuquerque 87108 Hewlett Packard Neely Sales Division 6501 Lomas Bivd N E 505 255 5586 TWX 505 243 8314 Las Cruces 88001 Hewlett Packard Neely Sales Division 114 S Water Street 505 526 2486 TWX 505 524 2671 NEW YORK New York 10021 Hewlett Packard RMC Sales Division 236 East 75th Street 212 879 2023 TWX 710 581 4376 Rochester 14623 Hewlett Packard Appendix B AND CANADA Philadelphia rea Hewlett Packard Robinson Sales Division 144 Elizabeth Street West Conshohocken 19428 215 248 1600 and 828 6200 TWX 215 828 3847 Pittshurgh Area Hewlett Packard Crossiey Sales Division 2545 Moss Side Blvd Monroeville 15146 412 271 5227 TWX 710
9. A1CR4 and AICR5 AICR A1Q1 A1Q2 A1Q3 A1Q4 and A1Q5 A1Q6 A1Q7 and A1Q8 A1R1 A1R2 AIR3 A1R A1R5 A1R6 6 2 00465 66501 0170 0060 0180 0105 0180 0161 0180 0284 0130 0017 0140 0014 0180 0111 0180 0059 0150 0084 0180 0305 0180 0064 0150 0084 0180 0284 0180 0110 0180 0050 0180 0061 0150 0084 0180 0149 0170 0022 0150 0097 1901 0025 1901 0026 1902 0040 1855 0004 1854 0033 1854 0070 1854 0039 1853 0017 1850 0128 0687 4721 0687 1031 0757 0992 0698 3186 0698 3187 Board Etched Circuit Ass y Power Supply Ambplifier includes C1 thru C24 Q1 thru Q8 CRi thru CR6 Ri thru R37 fxd my die 047 mf 10 400 vdew fxd alum elect 50 uf 10 100 25 vdew fxd tanta elect 20 fxd alum elect 10 75 var ceramic 8 50 pf fxd molded mica 56 pf 10 ot Assigned fxd alum elect 2 uf 25 vdew fxd elect 10 ut 10 10005 25 vdew fxd ceramic die 1 uf 8005 20 50 vdew fxd alum elect 10 100 fxd elect 35 uf 10 100 6 vdew fxd ceramic die 1 uf 80 20 50 vdew fxd alum elect 10 75 222 29202 OOO O Not Assigned C fxd alum elect 80 uf 75 vdew fxd alum elect 40 uf 15 100 50 vdew fxd elect 100 ut 100 10 150 vdew fxd ceramic die 1 uf 80 20 50 v cw fxd alum elect 10 100 C fxd my die 0 1 uf 20 600 vdew Not Assigned C fxd ceramic 0068 uf 2 1000 vdew Diode Si Diode Si 200 PIV
10. Diode breakdown 400 mw Transistor P channel Transistor Si NPN 2N3391 Transistor Si NPN Transistor Si NPN 2N3053 Transistor Si PNP Transistor germanium PNP 2N398B R fxd comp 4700 ohms 10 1 2 w R fxd comp 10 K ohms 10 1 2 w Not Assigned R fxd met fim 22 1 ohms 11 1 2 w R fxd 200 ohms 1 2 R fxd 2 K ohms 1 2 See introduction to this section 01775 1 Model 465A AIRT A1R8 A1R9 AiRI10 and A1R11 A1R12 A1R13 A1R14 A1R15 A1R16 AIR17 A1R18 AIR19 and A1R20 A1R21 A1R22 A1R23 A1R24 and A1R25 A1R26 AiR27 and A1R28 A1R29 A1R30 A1R31 A1R32 A1R33 and A1R34 A1R35 A1R36 A1R37 C1 thru C14 C15 C16 thru C21 C22 and C23 DS1 FI Li and L2 Q1 thru Q8 Q9 R1 thru R26 R27 R28 01775 1 0687 1031 0687 1061 0687 2231 0687 3921 0687 6821 0687 1531 0687 4721 2100 0094 0686 8235 0687 5621 0698 0001 0687 3321 0686 3305 0686 3015 0687 1021 0690 0003 0757 0072 0687 1231 0757 0835 0757 0841 2100 0091 0687 3921 0687 1511 0687 1531 0687 1001 0180 0378 0150 0097 2140 0015 2110 0017 9140 0029 1850 0098 0687 4721 0684 3331 Table 6 1 dad fxd comp fxd comp fxd comp fxd comp fxd comp fxd comp Reference Designation Index Cont d REFERENCE DESIGNA TION hp PART NO DESCRIPTION KA 10 K ohms 10 1 2 w 10 M ohms 10 1 2 w 22 K ohms 10 1 2 w 3300 ohms 1005 1 2 w
11. Div of Automatic tag Inc Redwood City Calif Ty Cat Mfg Co Inc Haltiston Mess Wiitow Leather Products Corp Newark British Radio Electronics Lie Wasbinpios D C ETA Englend Indiasa Generar Seto Elect Div Indiana Precision insirement Components Co Van Nuys Calif Hayward Calif San Jose 27 Calif Oakland Calif Barang Calif Burtiagame Calif Los Angeles 45 Calif Rubber Eng amp Development AN D Manufacturing Co Cooitton Control of Elpia Water Co California Eastern Lab FSC HAI H4 2 Handbook Supplements Dated DECEMBER 1964 Dated MARCH 1962 Model 465A SALES AND SERVICE OFFICES IN THE U S ALABAMA Huntsville 35801 Hewlett Packard Southern Sales Division Holiday Office Ctr Suite 18 205 881 4591 TWX 510 579 2204 ARIZONA Scottsdale 85251 Hewlett Packard Neely Sales Division 3009 No Scottsdale Rd 602 945 7601 TWX 602 949 0111 Tucson 85716 Hewlett Packard Neeiy Sales Division 232 So Tucson Blvd 602 623 2564 TWX 602 792 2759 CALIFORNIA Los Angeles Area Hewlett Packard Neely Sales Division 3939 Lankershim Blvd North Hollywood 91604 213 877 1282 and 766 3811 TWX 910 499 2170 Sacramento 95821 Hewlett Packard Neely Sales Division 2591 Carlsbad Ave 916 482 1463 TWX 916 444 8683 San Diego 82106 Hewlett Packard Neely Sales Division 1055 Shafter Street 014 223 8103 TWX 714 276 4263 San Francisco Area Hewlett Packard Neely Sa
12. General Electric Distribetieg Corp Schenectady N Y Carte Parts Div of Economy Baler Co Chicago IH United Transformer Co Chicege Ill U S Rebbe Co Mechanical Goods Div Searing Engineering Co Connor Sprisg Mfg Co Miller Dial amp Nameplate Co Radio Materials Ga Augat Brothers Inc Bale Efecttonias Inc Eice Cora Passaic R J San Francisco Calif San Francisco Calif Ei Monte Calif Chicago IH Attiebora Mass Columbus Sehr Philadelphia Pa Gemar Mfg Co Inc Wakefieid Mass K F Development Co Redwood City Catit Minneapolis Hcneywell Reguialo Co Micioswitzh Div Freesor II Nahm Bros Spring Co Oakland Calif Tru Conaector Corp Pesbody Mass Universal Meta Prag Inc Bassett Puente Calif Eipset Optical Ce Inc Rochester N Y Tiasstile Insuiated Wire Co Tarrytown N Y Sylvania Electric Prod Inc Semicondector Piv Robbins and Myers inc Stevess Mfg Ce inc Howard Smith lac Wabern Mass New York N Y Mansfield Ohio Port Henmoutk N 3 00015 39 Revised February 1965 Code No 3929 93983 9413 9414 34545 94148 94106 3497 94722 34330 94330 94682 95023 95236 95238 35263 95264 95265 95225 95348 95354 58712 95987 96967 4995 96256 96296 96330 9534 96305 97464 97539 97966 97979 88141 98159 Manufacturer Address amp V Contreis Insuline Vae Kormaa ind ne Electronic Division Manch
13. INPUT Set oscillator frequency to 1 Mc adiust output to 1 0 v rms use ac voltmeter to verify d Connect ac voltmeter to Model 465A OUT PUT e Adjust C5 for ac voltmeter reading of 8 5 v 9 18 SERVICING ETCHED CIRCUIT BOARD 9 19 The hp Model 465A has one etched circuit board Use caution when removing it to avoid damaging mounted components The hp part 01775 1 Model 465A number for the assembly is silk screened on the exterior of the circuit board to identify it Referto Section VI for parts replacement and hp part number information 5 20 The etched circuit board is a plated through type The electrical connection between sides of the board is made by a layer of metal plated through the component holes When working on these boards observe the following general rules a Usea low heat 25 to 30 watts small tip soldering iron and a small diameter rosin core solder b Circuit components can be removed by placing the soldering iron on the component lead on either side of the board and pulling up on lead If a component is obviously damaged clip leads as close to components as possible and then remove Excessive heat can cause the circuit and board to separate or cause damage to the component c Component lead hole should be cleaned with a toothpick or other appropriate device before inserting new lead d To replace components shape new leads and insert them in holes Reheat with iron
14. The hp Model 4654 Amplifier comprises an amplifier section and a power supply section The amplifier section contains two amplifier stages two emitter followers and a complementary symmetry pair The power supply is the series regulated type 4 3 GENERAL CIRCUIT DESCRIPTION 4 4 Figure 4 1 shows the block diagram for the 465A Amplifier Each amplifier stage Q1 and Q3 is followed by an emitter follower Q2 and Q4 to prevent loading of the amplifiers The complementary symmetry pair Q5 andQ6 provide power gain and low output impedance Overall feedback taken from the output and applied differentially to the initial amplifi cation stage decreases distortionand increases ga n accuracy Resistive voltage divider R4 R5 and R6 changes the amount of feedback to obtain 20 or 40 db gain as selected by the GAIN switch on the front panel The regulated power supply provides a con Stant 45 volts to the amplifier circuitry 4 5 DETAILED CIRCUIT DESCRIPTION 4 6 Refer to Figure 5 8 for the schematic diagram of the Model 465A Amplifier 4 T FIRST AMPLIFICATION STAGE 4 8 The first amplification stage comprises field effect transistor Q1 and emitter follower Q2 Q1 provides high input impedance and low input noise Emitter follower Q2 provides isolation while driving the second amplification stage Q2 also bootstraps Q1 load resistor R10 This permits the field effect transistor to have a gain of approximately 40 db while oper
15. and add solder as required to insure a good electrical connection e Clean excess flux from the connection and adjoining area 5 21 TROUBLESHOOTING TECHNIQUE 5 22 This section contains procedures designed to assist in the isolation of malfunctions These pro cedures are based on a systematic analysis of the instrument circuitry These operations should be Section V Paragraphs 5 20 to 5 27 Table 5 4 undertaken only after it has been established that the difficulty can not be eliminated by the Adjustment and Calibration Procedures Paragraph 5 13 An investigation should also be made to insure that the trouble is not a result of conditions external to the Model 465A 5 23 Conduct a visual check of the Model 4654 for possible burned or loose components loose con nections or any other obvious conditions which might suggest a source of trouble 5 24 Table 5 4 contains a summary of the front panel symptoms that may be encountered It should be used in initial efforts to select a starting point for troubleshooting operations 5 25 Table 5 5 in conjunction with Figure 5 4 contains procedures which may be used as a guide in isolating malfunctions The steps in Table 5 5 des cribe the normal conditions which should be encountered during the checks circled numbers in Figure 5 4 5 26 The checks outlined in Table 5 5 are not designed to measure all circuit parameters rather only to localize the malfunction Therefo
16. frequency to 1 ke adjust output for ac voltmeter reading of 10 v e Place 50 ohm resistor across Model 465A OUTPUT AC voltmeter reading should drop to 5 0 v This verifies Model 465A output impedance of 50 ohms DISTORTION CHECK a Figure 5 2 describes the test arrangement recommended A Test Oscillator hp Model 651A a Distortion Analyzer hp Model 331A and a Frequency Response Test Set hp Model 739AR will be required b ConnectModel465A as shown in Figure 5 2 01775 1 Model 465A FREQUENCY RESPONSE TEST SET d 739AR dp 465A AMPLIFIER o PO 099 TEST OSCILLATOR dp 651A 465A B 021 6 Figure 5 2 Distortion c Set Model 465A GAIN to 20 DB d Set distortion analyzer to METER e Set oscillator frequency to 1 ke adjust oscillator output to provide distortion analyzer voltmeter reading of 5 v f Adjust frequency response test set METER SET control to desired SET LEVEL g Switch distortion analyzer FUNCTION to SET LEVEL METER RANGE to SET LEVEL and SENSITIVITY for upscale meter deflection Adjust VERNIER for full scale reading of 1 100 Section V Figure 5 2 and Table 5 3 DISTORTION ANALYZER Check h Rotate FUNCTION switch to DISTORTION Null out fundamental of signal by alternately reducing METER RANGE and adjusting BALANCE and frequency control knob for null j Final null will indicate amount of distortion present in Model 465A output signal At 1 ke di
17. jose Calif Signa lite iac Neptune 8 J J H Wiens and Sons Winchester Mass ladustia Condenser Corp Chicago IH R F Products Division of Amprenoi Borg Esecteonics Corp Baabery Conf EF Jokesor Co Waseca Minn Internationa Resistance Co Philadelphia Pa Jones Howard B Division of Cinch Mig Corp James Knights Ca Kutka Electric Corporatios Lenz Electric Mfg Co Liteluse inc Chicago lt Sandwich ill Mt Vemon amp Y Chicago ili Bes Plaines ilk Lord Mfg Co Esa Pa C V Merwedei San Francisco Calif Micamol Electronic Mfg Corp Brosklya N Y James Miten Mfg Qo ine Malden Mass J W Miller Co Los Angeies Calif Monadnock Mitis Saa Leandro Calif Mueller Elecis Co Cleveland Ohio Oak Manufacturing Co gt Crysta Lake Hi Bendix Pacilic Division of Bendix Corp Pacitic Metais Co Phaosiran instrument and Electronic Co Phosii Mig Cs Philadelphia Steet and Wire Corp Fhitadeipkia Pa Potter and Brumfield Div of American Machine and Foundry Princeton in Radio Condenser Co Camden NJ Radic Receptor Co iac Brookiya N Y Resistance Products Do Hateisburg Pa Rebbercraft Corp of Caiif Torrance Calif Shakegroaf Division of Illinois Tool Works No Reliywood Gatit San Francisco Calif South Pasadena Calif Chicago Hl ipia Bl Signal Indicator Coip New York N Y Strathers Daea lac Pitman NaJ Tholapsor Bremer amp Co Chicago I
18. of C20 OUTPUT Should be a sine wave with peak removing power supply from circuit Measure voltage of approximately 12 7 v 9 v rms If dc voltage at the side of C20 Should be incorrect proceed to o i 45 v x1 v I correct proceed to gt if incorrect go directly to 4 Observe the ac waveform at the base of Q4 Should be a sine wave with peak voltage of approximately 12 7 v 9 v rms If correct Connect a DC Power Supply hp Model 723A proceed to 6 if incorrect go directly to to the collectors of Q5 and Q6 Connect the 8 high side to the collector of Q5 the low side to the collector of Q6 Adjust the power 6 Observe the ac waveform at the junction of R24 supply output to 45 v set current limit to and R25 Should be a sine wave with peak 75 ma If power supply indicates current voltage approximately 12 7 v 9 v rms H limit check Q4 Q5 Q6 and CR2 3 for short correct proceed to if incorrect go directly to 7 11 Check Model 465A power supply to include T1 secondary Q7 CR6 Q8 and Q9 Refer to 6 Check R26 R27 and C15 Figure 5 8 for typical dc voltage levels 9 6 01775 1 Model 465A c22 Q9 465A B 0219 Figure 5 5 Top View 01775 1 Section V Figure 5 5 TI CIS 5 7 Section V Model 465A Figure 5 6 465A A 0220 Figure 5 6 Printed Circuit Board Parts Location 9 8 01775 1 0T 2 6 8 T
19. 0 ke Performance Checks hp Model 331A Sensitivity 1 full scale Distortion Analyzer Voltage Output 45 v Current Limit 75 ma Performance Checks Superior Electric Co Type 3PN 116 hp Model 3440A 3445A Multi Function Unit hp Model 739AR Fre DC Power Supply Troubleshooting hp Model 723A DC Power Supply hp Part No 0757 0059 hp Part No 0757 0024 See Figure 5 3 Resistor 1M ohm 1 1 2 w 50 ohms 1 1w 1M ohm shielded load Performance Checks 5 0 01775 1 Model 4654 Section V Paragraphs 5 1 to 5 8 Figure 5 1 SECTION Y MAINTENANCE 5 1 INTRODUCTION 9 7 ACCURACY AND GAIN CHECK 5 2 This section contains information necessary for the proper maintenance of the hp Model 465A Amplifier Thissectionprovidesthe necessary Per formance Checks Adjustment and Calibration Pro cedures and Troubleshooting Techniques required to accomplish the above objective 5 3 TEST EQUIPMENT REQUIRED 5 4 The test equipment required to perform the operations outlined inthis sectionis listed in Table 5 1 This table describes the type of instrument required critical specifications type of operation to be con ducted and the recommended model If the specific model recommended is not available equipment which meets or exceeds the critical specifications listed may be substituted 5 5 PERFORMANCE CHECKS 5 6 The Performance Checks p
20. 125 83148 53186 33298 83315 83338 83385 83561 83594 83740 83177 8382 84171 84396 Batti 84370 85454 85471 Manufacturer Address Military Specification sua Wilkor Products tac Cleveland Chio Rayihesn Mig Co industtia Components Div ingusdr Tube Operations Newton Mass international Rectifier Corp EF Segunds Calif The Aitpax Products Co Cambridge Mass Barry Controls inc Watertown Mass Carter Parts Co kokie ili Jelfers Elecironics Division of Speer Carboa Co Asten B DuMent Labs inc Maguire ladusites inc Sylvania Electric Prog Inc Elecironic Tabs Div Astron Co SwiicheraH inc Metals and Controls hie Div of Texas Instruments Inc Spencer Prods Research Products Corp Rotran Manefacturing Co Inc Vector Electronic Co Western Washer Mir Co Los Angeles Calif Carr Fastener Co Cambridge Mass New Hampshire Bell Bearing Ino Poterbarosgh N H Darlington S C Los Angeles Calif Spriegliels N H Red Bank Noi Mundeicin HI Breakiya N Y Chicago itl Bu Bois Pa Sitten NL Greenwich Conn Emporium Pa East Newark NJ Chicago Hi Attlebaro Mass Madison Wis Woodstock N Y Glendale Calif Pyramid Eloetric Co Electa Cords Ca Victory Engineering Corp Bendix Cors Red Bank Div Hubbell Corp Smith Resman H Inc Cantezi Screw Co Savitt Wire ang Cable Co Div of Amerace Gerp Burrosghs C rp Esectro
21. 28 Babcock Relays inc Costa Mesa Calif 9134 Texas Capacitor 6 Houston Texas 05745 Ats m Electronics Sun Valley Calif 09250 Electro Assemblies tec Chicege Ill 09569 Mallory Battery Co of Canada Lie Toronto Ontario Sanada 09664 The Bristoi Co Waterbury Conn 102 4 General Transistor Western Corp Las Angeles Calif 10411 Ti Tai Inc Berkeley Gelif 10646 Carbosundum Co Niagara Falls X Y 13236 CFS of Berne inc Berne lad 1 237 Chicago Telephone of California Inc e Pasadena Calif 11372 Microwave Electronics Corp Palo Alto Calif 11534 Duncan Electronic Inc Santa Ana Catlf 11733 General Instrument Corporation Semiconductor Division Newark 8 4 1177 knperial Electronic inc Buena Park Calif 11870 Melabs Inc Palo Alto Calif 12138 Prifedeiphta Handle Co Camden N J 12697 Ciarostat Mfg Oo Dover HB 12859 Nippon Electric La Lid Tokyo Japan 12530 Della Semiconductor inc Newpart Beach Calif 13 03 Thesmolloy Dallas Texas 13356 Telefenken G M B H Hannover Germany 33335 Midiana Mfg Co Kansas Clty Kansas 14099 Sem Tech Sewbury Park Calif 14393 Caiif Resisto Corp Santa Monica Calif 14298 American Components fne Conshohocken Pa 14555 Comef DeblHier Elec Corp e Plainfield N J 34959 Williams Mfg Co Sea Jose Calif 13203 Webster Efectronics Co inc Brooklyn N Y 15291 Adjusiabia Bushisg Co R Hollywood Calif 15772 Twestieta Century Coil Serisg Co Santa Clara
22. 35 2040 0700 5060 0700 5060 0709 5060 0727 5060 4916 8120 0078 9100 0343 9140 0029 00465 00101 00465 00102 00465 00201 00465 00202 00465 01201 00465 66501 00465 90000 6 6 Table 6 2 Replaceable Parts Cont d hp PART NO DESCRIPTION MFR Insulator Insulator bushing nylon Heat sink Connector R F Connector ac power cord receptacle Holder fuse Stand tilt Binding Post red Binding Post black Transistor Transistor germanium PNP germanium PNP 2N398B Transistor Si PNP Transistor Si NPN 2N3391 Transistor Si NPN 2N3053 Transistor Si NPN Transistor Diode Si Diode Si 200 PIV Diode breakdown 400 mw P channel R var comp lin taper 5 K ohms 30 0 15 w R var comp lin taper 50 K ohms 30 0 10 w Fuse cartridge 0 15 amp Lamp glow Switch slide DPDT Switch toggle SPST 3 amp Switch toggle DPDT 3 amp Cover side Cover bottom Spacer CAB Jewel pilot light Base pilot light Hinge Frame Ass y Cover top Foot Ass y Terminal ground black Cable Ass y power black extra limp 7 5 ft long Transformer power Coil R F Plate right Plate left Panel front Panel rear Bracket transistor Board Etched Circuit Ass y Power Supply Amplifier Manual Operating and Service gt Option 01 only See introduction to this section MFR PART NO 293011 974 9017 1G1 30288 1 AC 3
23. 5783 058206 deS 96173 06402 06475 06549 06555 96751 05812 07088 Manufacturer Address V S A Common McCoy Electronics Sage Electronics Corp Humidail Ce Wasttex Corp Garlock Packing Co Electronic Products Div Aerovox Dorp Any supplies of U S Meunt Rolly Springs Pa Rochester K Y Coltan Salit New York RYL Camden Ru New Bedford Mass App lec Harrisburg Pa Aircraft Radio Corp Boonton N i Northern Engineering Laboratories Hc Burtiagton Wis Sagalo Electric Company Orditi Division Capacitors Goe Engineering Co Cart E Holmes Corp Ailes Bradiey Go Litton frdustries inc TRY Semieon gctors Ine Texas instruments iac Traesistor Products Div Tha Alliance Mfg Co Chassi Tiak Corp Pesific Refays Inc Ametack Corp Pulse Engineering Co Ferroxcube Coco of America Cole Ig Co Pelo Aito Catif Ampheecl Borg Electronics Corn Chicago IH Radio Corp of America Semiconducier and Materiais Div Somerville N J Vacaline Co of America Inc Marion ili Los Angeles Caiit Los Angeles Calif Milwaukee Wis Beverly Hills Calif Lawndale Calif Dallas Texas Alliance Ohio fadiaaspoiis dad Van Nays Call Rockford RE Satta Clare Calif Saugerties N Y Gid Saybrook Conn Hoskins Enginesring Do San Fernando Cetif amp F Semiconductor Products Dept Syracuse N Y Ager Machise amp Too Co Daytoa Ghio Eldema Corp El Moste Calif Transit
24. 7 5 ft long MISCELLANEOUS 0340 0099 0340 0100 1200 0043 1200 0081 1205 0050 250 0252 1251 1009 1400 0084 1490 0031 1510 0010 1510 0011 Insulator grey plastic Insulator grey plastic Insulator Insulator Heat sink Connector R F Connector power Holder fuse Stand tiit Binding Post red Binding Post black 3000 0700 5000 0711 3020 0700 5040 0234 5040 0235 5040 0700 5060 0700 5060 0709 5060 0727 5060 4916 Cover side Cover bottom Spacer CAB Jewel pilot light Base pilot light Hinge Frame Ass y Cover top Foot Ass y Terminal ground black 00465 00101 00465 00102 00465 00201 00465 00202 Piate right Plate left Panel front Panel rear 00465 01201 00465 90000 Bracket transistor Manual Operating and Service gt Option 01 only See introduction to this section 6 4 01775 1 Model 465A hp PART NO 0130 0017 0140 0014 0150 0084 0150 0097 0170 0022 0170 0060 0180 0050 0180 0059 0180 0061 0180 0064 0180 0105 0180 0110 0180 0111 0180 0149 0180 0161 0180 0284 0180 0305 0180 0378 0340 0099 0340 0100 0684 3331 0686 3015 0686 3305 0686 8235 0687 1001 0687 1021 0687 1031 0687 1061 0687 1231 0687 1511 0687 1531 0687 2231 0687 3321 0687 3921 0687 4721 06
25. 797 3650 TEXAS Ballas 75209 Hewlett Packard Southwest Sales Division P 0 Box 7166 3605 Inwood Rd 214 357 1881 and 332 6667 TWX 910 861 4081 Houston 77027 Hewlett Packard Southwest Sales Division P O Box 22813 4242 Richmond Ave 713 667 2407 TWX 713 571 1353 Syracuse Sales Division UTAH 800 Linden Avenue 716 381 4120 TWX 716 221 1514 Poughkeepsie 12601 Hewlett Packard Syracuse Sales Division 82 Washington St Salt Lake City 84115 Hewlett Packard Lahana Sales Division 1482 Major St 801 486 8166 TWX 801 521 2604 914 454 7330 VIRGINIA TWX 914 452 7425 Syracuse 13211 Hewlett Packard Syracuse Sales Division Pickard Bldg E Molloy Rd 315 454 2486 TWX 315 477 1375 NORTH CAROLINA High Point 27262 Hewlett Packard Southern Sales Division 1823 N Main Street 919 882 6873 TWX 510 926 1516 OHIO Cleveland 44129 Hewlett Packard C Crossley Sales Division 5579 Pearl Road 216 884 9209 TWX 216 888 0715 Dayton 45409 Hewlett Packard Crossley Sales Division 1250 W Dorothy Lane 513 299 3594 TWX 513 944 0090 PENNSYLVANIA Camp Hill Hewlett Packard Robinson Sales Division 017 737 6791 Richmond 23236 Hewlett Packard Southern Sales Division 2112 Spencer Road 703 282 5451 TWX 703 282 9986 WASHINGTON Seattle rea Hewlett Packard Neely Sales Division 11656 N E 8th St Bellevue 98004 206 GL4 3971 TWX 910 443 2303 ANADA Montr
26. 87 5621 0687 6821 0698 0001 0698 3186 0698 3187 0699 0003 0757 0072 0757 0835 0757 0841 0757 0992 01775 1 Table 6 2 Replaceable Parts Section VI Table 6 2 DESCRIPTION MFR PART NO Ea var ceramic 8 50 pf fxd molded mica 56 pf 10 fxd ceramic die 1 uf 80 20 50 vdew fxd ceramic 0068 uf 2 1000 vdew fxd my die 0 1 uf 20 600 vdew fxd my die 047 mf 10 400 vdew fxd alum elect 40 uf 15 100 50 vdew fxd elect 10 uf 10 100 25 vdew fxd elect 100 uf 100 10 15 vdew elect 35 uf 10 100 6 vdew fxd alum elect 50 uf 10 100 25 vdew fxd alum elect 80 uf 75 vdew fxd alum elect 2 uf 25 vdew fxd alum elect 10 100 fxd tanta elect 20 fxd alum elect 10 75 fxd alum elect 10 100 fxd alum elect 10 100 zi e Insulator grey plastic Insulator grey plastic fxd comp 33 K ohms 10 1 4 w fxd comp 300 ohms 45 1 2 w fxd comp 33 ohms 15 1 2 w fxd comp 82 K ohms 5 1 2 w fxd comp 10 ohms 410 1 2 w fxd comp 1000 ohms 10 1 2 w fxd comp 10 K ohms 410 1 2 w fxd comp 10 M ohms 10 1 2 w fxd comp 12 K ohms 1005 1 2 w fxd comp 150 ohms 1066 1 2 w fxd comp 15 K ohms 10 1 2 w fxd comp 22 K ohms 10 1 2 w comp 3300 ohms 10 1 2 w fxd comp 3 9 K ohms 110 1 2 w fxd comp 4700 ohms 10 1 2 w fxd comp 5600 ohms 10 1 2 w fxd comp 6800 ohms 10 1 2 w fxd comp 4 7 o
27. GLLTO Opewsyos 1egrpdury L 9 a ndlq Sm TN ee a a P 9e010 2 YS9t Sb ONnOuo LINOMIO S310N30 4f GNnou5 SISSYHO S310N30 ONVOS LINOBIO O31NHid SILONIO os 9vg8g333 310N30 HiVd 1VN9IS SILONZO emm NOILV9O7 IINVA LNOYS SALVOIONI 71 BA 8900 0 13A 038 v29 03 bed mov oo O0 Na 60 nuH L 20 AlddNS Y3MOd RIVA AYOLOV3 iV 03193738 3071VA ANALLIO Q3iv no3H Saas Q31VN9IS3G ISIMYZHLO SSAINA SOVIVIOBIIA Ni SHOLIOVIVO ANY SWHO NI SHOLSISIY Vly I SALON ll i LHM 9718 4v 428 prat 0001 5 19 Avi v lsnrav 003 vid MM FF NY A IIA HERS I ee L 9 Gandia A uorpoeg V9G99 I9PON Model 465A Section VI Paragraphs 6 1 to 6 7 SECTION VI REPLACEABLE PARTS 6 1 INTRODUCTION 6 2 This section contains information for ordering replacement parts Table 6 1 lists parts in alpha numerical order of their reference designators and indicates the description and hp part number of each part together with any applicable notes Table 6 2 lists parts in alpha numerical order of their hp part number and provides the following information on each part a Description of the part see list of abbreviations below b Typicalmanufacturer of the part ina five digit code see list of manufacturers in Appendix c Manufacturer s part number d Total quantity used in the instrument TQ col 6 3 Misce
28. LL Titley Mfg Co Stackpole Carbon Co Stendard Thomson Corp Tianesman Products inc Transformer Engineers Ucinite Ca Veede Root Inc Veaco Ha Ca Costineata Witt Electronics Corp Pailagelphia Pa New Recheiie N Y San Francisco Calif t Marys Pa Waltham Mass Clevelend Ohis Pasadena Calif Newtonville Mass Hartford Conn Chicago lt Zierick Mfg Corp Megco Division of Sessions Clack Co Morristown NA Schnitzer Alloy Products Elizabeth N 3 Times Facsimile Cop New York N Y Electronic industrias Association Any brand lube meeting ERA standards Washington D C Uzimax Switch Div of KL Maxson Cote United Tiansformer Corp Oxford Electric Carp Bowns Laboratories Inc Acta Div of Robertshaw Esitos Controls Ca AB Star Products Inc Avesy Adhesive Lasel Corp Hammeriend 0 inc Stevens Atnoi Co inc international instruments Inc Now Haves Cona LaGiange IH Venice Cali Norwatk Cona Wallingford Cons New York amp Y Chicago ilf Riverside Calif Cotumbes 16 Ohio Defianca Ohio Hontovia Calif New York X Y Boston Mass Grayiiti Co Triad Tronsformer Corp Winchester Eiectronits Co Inc FSC Hal H4 2 Handbook Supplements Dated DECEMBER 1964 Dated MARCH 1962 Appendix A Code Na 81349 21415 81453 81483 8154 81860 82042 82142 8200 82209 82219 82376 82389 82647 82866 82877 82893 83053 83056 83086 83
29. Laxisglon Mass Baltimore Md Mi Vernon X Y Seima N C Chicago Hi Elmsforg N Y So Norwalk Cone Tonawanda N Y North Adams Hass St Paul Mine Elizabeth 1 N 4 Biuffton Ohio Swissvele Pa Owosso Mich Atlantic India Rubber Works inc Chicago IIl Amgerite Co Inc Mew Yok MY Belden Mig Co Chicaga IH Bird Electronic Corp Cleveland Ohio Bimback Radio Ca New York NY Boston Gear Works Div el Murray Sa of Texss Quincy Hass Bud Radio Inc Camioc Fastener Corp Allen D Cardweti Eiectrosic Prod Corp Bussmaan Fase Div of Mc raw Clevetand Onis Paramus N J Plaiavilie Cona Edison Co t Loris Mo Chicago Condesser Corp Chicago HI CTS Corp Efkhart Ind Cannon Electric Co Cinema Engineering Se C P Clare amp Ca Centtalad Div of Slobe Union Inc Mitwaukee Wis Chicago IH New York NY Chicago ili Los Angeles Catif bank Calif Chicago lit Dommerciat Plastics Co The Cornish Wire Co Chicago Miniature Lamp Works A C Smith orp Crowiey Div West Orange N L Chicago iii Mi land Mich San Bruno Calif Cinch Mfg Corp Dow Cornisp Corp Eitel McCullough ine Electro Motive Mfg Co inc Wiltimantic Cona Providence R 1 Chicago ill Brooklyn 8 Y Kezsbey N Coto Coil Ce Inc Jota Fast amp Co Diaiight Corp Gesera Ceramic ent Corp Semiconductor Div Girar Hopkins Brake Mfg Co Hugh H Eby I
30. al information address inquiries to your hp Sales and Service Office see Appendix B for office locations 2 16 COMBINATION MOUNTING 2 17 TheModel465A may be mounted in combination with other submodular units by using a Combining Case hp Model 11051A 11052A or both depending on depth The Combining Case is a full module unit which accepts various combinations of submodular units Being a full module unit it can be bench or rack mounted and is analogous to any full module instrument i 2 1 Section III Model 465A Figure 3 1 465A AMPLIFIER HEWLETT PACKARD 40 DB nr 465A B O214 O LINE ON switches power voltage on indicator front panel Option 01 only glows when line voltage is on OUTPUT rear panel BNC connectors connected in parallel with the OUTPUT terminals on the 2 GAIN selects 20 or 40 db gain front panel Option 01 only FUSE contains a fuse which provides pro 3 INPUT front panel banana type connector tection for the primary circuit of the instru that provides gignal input and circuit common ment transformer The fuse is used for both for the instrument 115 and 230 volt operation O OUTPUT front panel banana type connectors that provide signal output circuit commor and AC POWER accepts a 3 wire power cable chassis ground for the instrument The ground with safety ground strap between and 77 permits floating de operation 5 INPUT rear panel BNC connect
31. ately comp composition Hg mercury replaceable td time delay conn connection TiO titanium dioxide crt cathode ray tube impg impregnated obd order by de incd incandescent scription tog toggle dep deposited ins insulation ed tol tolerance p peak trim trimmer EIA Tubes or transistors K kilo 1000 pe printed circuit twt traveling wave tube meeting Electronic board vat variable Industries Associa lin linear taper pf picofarads with tion standards will log logarithmic taper y f M _ s normally result in 1 arads watts ie anne pp peak to peak ww wirewound instrument operating m milli 10 iv lt p ak inverse w o without within specifications M megohms p B ho il tubes and transistors ma milliamperes attica e optimum value selected for best micro 10 po 5 po selected at factory BR poly polystyrene performance will be minat miniature t snotenti t average value supplied if ordered m gl metal film on glass PO iS shown part may by amp stock numbers mfr manufacturer rect rectifier be omitted 01775 1 6 1 Section VI Table 6 1 Model 465A Table 6 1 Reference Designation Index REFERENCE DESIGNATION BP PART NO DESCRIPTION NOTE i A1C1 A1C2 A1C3 A1C4 A1C5 A1C6 A1C7 A1C8 A1C9 A1C10 A1C11 A1C12 A1C13 A1C14 A1C15 A1C16 A1C17 A1C18 A1C19 A1C20 A1C21 A1C22 and A1C23 A1C24 A1CRI thru A1CR3
32. ating at an optimum current for noise from a 45 volt power supply C6 and R12 stabilize the overall gain R13 and C9 allow Q2 to operate asan emitter follower with reduced operating voltage to lower the power dissipation and the noise generation R2 and R7 set the gate voltage for Q1 Q2 bypasses any ac on the supply preventing hum injection into 1 4 9 SECOND AMPLIFICATION STAGE 4 10 The second amplification stage consists of amplifier Q3 and emitter follower Q4 Amplifier Q3 is a common emitter stage When the GAIN switch is on 20 DB Q3 has 20 db of gain Q1 and Q3 together give a total of 60 db gain of which 40 db is used as feedback and 20 db is retained as the closed loop gain When the GAIN switchis on 40 DB C11 shunts R22 giving Q3 40 db of gain The 40 db of feedback is still used which allows the same gain shaping to be 01775 1 OPERATION usedinboth GAIN switch positions 20 DB and 40 DB R19 maintains a charge on C11 in the 20 DB position to eliminate switching transients while changing gain R15 R16 R17 and CRi form the bias voltage divider for Q3 R15 provides bias adjustmentand CR1 provides temperature compensation Emitter follower Q4 isolates and drives the complementary symmetry pair Q5 and Q6 4 11 OUTPUT CIRCUITRY 4 12 Q5 and Q6 operate as complementary symmetry emitter followers CR2 and CR3 forward bias Q5 and Q6 to prevent cross over distortion R24 and R25 determine the idling current flowi
33. curacy 40 1 db 41 at 1000 cps Input Impedance 10 megohms shunted by lt 20 pf Output Impedance 50 ohms Frequency Response 0 1 db 100 cps to 50 ke less than 2 db down 5 cps to 1 Mc Noise not greater than 25 uv rms referred to input with 1 megohm across input Output greater than 5 volts rms into 50 ohms 1 2 watt greater than 10 volts rms open circuit Weight 3 Ibs 12 oz 1 0 01775 1 Model 465A Section I Paragraphs 1 1 to 1 5 SCOPE This manual contains the information necessary for operating and servicing the standard Model 465A Amplifier and the Model 465A Option 01 Amplifier rear input connectors in parallel with front panel connectors SECTION i GENERAL INFORMATION 1 1 DESCRIPTION 1 2 The hp Model 465A is a general purpose amplifier andan ideal impedance converter 10 meg ohms to 50 ohms This amplifier has extremely stable 20 db or 40 db gain overa continuous frequency range of 5 cps to 1 megacycle Either gain may be selected quickly with a switch on the front panel The output stage provides low output impedance and wide dynamic range The hp 465A is a three terminal device isolated from chassis and may be floated up to 500 volts de above chassis ground 1 3 INSTRUMENT IDENTIFICATION 01775 1 1 4 Hewlett Packard uses a two section eight digit serial number 000 00000 If the first three digits of the serial number on your instrument do not agree with those
34. eal Quebec Hewlett Packard Canada Ltd 8270 Mayrand Street 514 735 2273 TWX 610 421 3484 Ottawa Ontario Hewlett Packard Canada Ltd 1762 Carling Avenue 613 722 4223 TWX 610 562 1952 Toronto Ontario Hewlett Packard Canada Ltd 1415 Lawrence Avenue West 416 249 9196 TWX 610 492 2382 HEWLETT h i PACKARD 1 65 Appendix B Model 465A INTERNATIONAL SALES AND SERVICE OFFICES ARGENTINA Mauricio A Saurez Telecommunicaciones Carlos Calvo 224 Buenos Aires Tel 30 6312 AUSTRALIA Sampie Electronics Vic Pty Ltd 9 11 Cremorne Street Richmond E 1 Victoria Tel 42 4757 3 lines Sample Electronics N S W Pty Ltd 4 Grose Street Giebe Sydney New South Wales Tel 69 6338 6 tines AUSTRIA Unitabor G m b H Rummeihardtgasse 6 3 Vienna Tei 426 181 BELGIUM Hewlett Packard Benelux S A 20 24 Rue de l Hopital Brussels Tel 11 22 20 BRAZIL Cientai importacao E Comercio Ltda Rua Cons Crispiniano 69 8 And Conj 81 Sao Paulo Tei 32 4332 CANADA Hewlett Packard Canada Ltd 8270 Mayrand Street Montreal Quebec 514 735 2273 Hewlett Packard Canada Ltd 1762 Carling Avenue Ottawa Ontario 1613 722 8162 Hewlett Packard Canada Ltd 1415 Lawrence Avenue W Toronto Ontario 416 249 9196 CHILE Hector Calcagni Casilla 13942 Santiago Tel 6 42 26 DENMARK Tage Olsen A S Ronnegade 1 Copenhagen Tel 29 48 0 FINLAND INTO 0 Y P 0 Box 153 Merituilinkatu 11 Hels
35. ester N H Genera Cable Corp Bayonne N J Raytheon Mig Ca industria Componente Biv Receiving Tube Operation Quincy Mass Rayiheon Mfg Co Semiconductor iy California Street Piast Hewtos Mass Scientific Radio Products iac Livingston X Loveiand Colo Tuag Sol Electric inc Newack NJ Custiss Hsight Carp Elecitonics Div East Paterson N J Sosthco Div of Chesier Com Lester Pa Tru Ohm Prod Div of Made Engineering and Mig Co Wite Cloth Products tec Worcester Pressed Aluminum Corp Worcester Hass Boston Mass Hiami Fla Woodside N Y New York N Y Burbank Calif Sheridan Wyo Bridgeport Conn Bloomkieid N J Chicago Iii Frarklia Ind Chicago tii Sunnyvaie Calif Oleas N Y Chicago IH Chicago iit Philbrick Researchers inc Allios Products Corg Continental Connector Garg Leectaft Mig Ca inc ierco Electronics Inc Nationa Coil Co Vitramon inc Gordas Corp Methode Mig Co Dage Electric Co Ing Weckesser Ca Hagpiss Laboratories Hi Q Division of Aerovox Thordarson Meissner Div of Magsire Industries inc Soler Manufacturing Co Gatiton Screw Ca Microwave Associates inc Excel Transformer Co industriat Retaising Ring So Automatic and Precisios Mig Co Mt Cermei ff Los Angeles Calif Chicago HE Burlington Hass Gaklang Caiif Hvington N J Yonkers N Y CBS Electronics Div cf C B inc Reo
36. hms 45 1 2 w fxd 200 ohms 1 2 fxd 2 K 41 2 fxd comp 8 2 ohms 10 1 2 w fxd 49 9 ohms 41 fxd 6 81 K ohms 1 fxd 12 1 K ohms 1 fxd met fim 22 1 ohms 21 1 2 w PRI UE PPPRP ARE PRA BADR E 12982 04062 56289 91418 01281 01281 96289 56289 56289 56289 56289 56289 96289 56289 56289 56289 56289 56289 29480 28480 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 01121 19701 19701 01121 19701 19701 19701 19701 See introduction to this section 557 019 U2PO 34 R RCMISE 560K 33C41 B HEW 17 Type 663UW D32538 30D106G025BB4 30D107G015DD4 30D156G006BB4 D34114 41D D33191 40D 173A2 Type 30D 150D335 X 0035 34D108H2R5FJ4 34D108H030JP4 0340 0099 0340 0100 CB 3331 EB 3015 EB 3305 EB 8235 EB 1001 EB 1021 EB 1031 EB 1061 EB 1231 EB 1511 EB 1531 EB 2231 EB 3321 EB 3921 EB 4721 EB 5621 EB 6821 EB 47G5 CEC T O MF7C T O EB 82G1 MF7C T O MF7C T O MF7C T O MF7C T O 6 5 Section VI Table 6 2 1200 0043 1200 0081 1205 0050 21250 0252 1251 1009 1400 0084 1490 0031 1510 0010 1510 0011 1850 0098 1850 0128 1853 0017 1854 0033 1854 0039 1854 0070 1855 0004 1901 0025 1901 0026 1902 0040 2100 0091 2100 0094 2110 0017 2140 0015 3101 0033 3101 0037 3101 0038 5000 0700 9000 0711 5020 0700 5040 0234 2040 02
37. ier canbe operated from any source of 115 or 230 volts 41095 50 1000 cps With the instrument disconnected from the ac power source move the slide switch located on the rear panel until desired line voltage appears Power dissipation is 10 watts maximum 2 7 GROUNDING REQUIREMENTS 2 8 To protect operating personnel the National Electrical Manufacturers Association NEMA recom mends that the instrument panel and cabinet be grounded AllHewlett Packardinstruments are equip ped with a three pronged conductor eable which when plugged into an appropriate receptacle grounds the instrument The offset pin on the power cable three prong connector is the ground wire 01775 1 2 9 To preserve the protection feature when operating the instruments from a two contact outlet use a three prong adapter and connect the green pig tail on the adapter to ground 2 10 INSTALLATION 2 11 The Model 465A is fully transistorized No special cooling is required however the instrument should not De operated where the ambient temperature exceeds 55 C 131 E 2 12 BENCH MOUNTING 2 13 The Model 465A is shipped with plastic feet and tilt stand in place ready for use as a bench instrument 2 14 RACK MOUNTING 2 15 The Model 465A may be rack mounted by using an adapter frame hp Part No 5060 0797 The adapter frame is a rack frame that accepts any combination of submodular units It can be rack mounted only For addition
38. inki Tel 66 39 09 and 35 125 FRANCE r Hewlett Packard France 150 Boulevard Massena Paris 13e Tei 707 97 18 GERMANY Hewlett Packard V m b H Steindamm 35 Hamburg Tel 24 05 51 Hewlett Packard V m b H Kurhessenstrasse 95 Frankfurt am Main Tel 52 00 36 Hewlett Packard V m b H Reginfriedstrasse 13 Munich 9 Tel 49 51 21 22 Hewlett Packard Vm b H Technisches B ro Herrenbergerstrasse 110 703 B blingen W rttemberg Tel 6971 GREECE K Karayannis Klaftmonos Square Athens 124 Tel 230 301 5 lines INDIA The Scientific Instrument Company Ld 6 Tei Bahadur Sapru Road Allahabad 1 Tel 2451 The Scientific Instrument Company Ld 240 Dr Dadabhai Naoroji Road Bombay 1 Tei 26 2642 The Scientific instrument Company Ld 11 Esplanade East Calcutta 1 Tel 23 4129 The Scientific Instrument Company Ld 30 Mount Road Madras 2 Tei 86339 The Scientific Instrument Company Ld 8 7 Ajmeri Gate Extn New Delhi 1 Tel 271053 IRAN Telecom Ltd P O Box 1812 Tehran Tel 43850 48111 ISRAEL Electronics amp Engineering Ltd 16 Kremenetski St Tel Aviv Tel 35021 3 lines ITALY Hewlett Packard Italiana S p A Viale Lunigiana 46 Milan Tei 69 15 84 5 6 Hewlett Packard Italiana S p A Piazza Marconi 25 Roma Eur Tel 59 25 44 5 JAPAN Yokogawa Hewlett Packard Ltd 2270 Ishikawa cho Hachioji Tokyo Tei Hachioji 0426 3 1231 19 tines Yokogawa Hewlett Packard Ltd No 3 6 chome Ao
39. les Division 501 Laurel Street San Carlos 94071 415 591 7661 TWX 910 376 4390 COLORADO Englewood 80110 Hewlett Packard Lahana Sales Division 7965 East Prentice 303 771 3455 TWX 303 771 3056 CONNECTICUT Middletown 06458 Hewlett Packard Yewell Sales Division 589 Saybrook Rd 203 346 6611 TWX 203 346 7433 FLORIDA Miami 33125 Hewlett Packard Florida Sales Division 2907 Northwest 7th St 305 635 6461 Orlando 32803 Hewlett Packard Fiorida Sales Division 621 Commonwealth Ave 305 425 554 TWX 305 275 1234 St Petersburg 33708 Hewlett Packard Florida Sales Division 410 150th Ave Madeira Beach 813 391 0211 TWX 813 391 0666 GEORGIA Atlanta 30305 Hewlett Packard Southern Sales Division 3110 Maple Drive N E 494 233 1141 TWX 810 751 3283 ILLINOIS Chicago 60645 Hewlett Packard Crossley Sales Division 2501 West Peterson Ave 312 275 1600 TWX 910 221 0277 INDIANA Indianapolis 46205 Hewlett Packard Crossley Sales Division 3919 Meadows Dr 317 546 4891 TWX 317 635 4300 KENTUCKY Louisville 40218 Hewlett Packard Southern Sales Division Suite 4 3411 Bardstown Rd 502 459 4140 TWX 810 535 3128 MARYLAND Baltimore 21207 Hewlett Packard Horman Saies Division 6660 Security Blvd 301 944 5400 Washington D C Area Hewlett Packard Horman Sales Division 941 Rollins Avenue Rockville 20852 301 427 7560 TWX 710 828 9684 MASSACHUSETTS Bosten Area Hewlett Packard
40. llaneous parts are listed at the end of Table 6 1 6 4 ORDERING INFORMATION 6 5 To obtain replacement parts address order or inquiry to your local Hewlett Packard Field Office see lists at rear of this manual for addresses Iden tify parts by their Hewlett Packard part numbers 6 6 NON LISTED PARTS 6 7 To obtain a part that is not listed include a Instrument model number b Instrument serial number c Description of the part umn d Function and location of the part REFERENCE DESIGNATORS A assembly F fuse p plug V vacuum tube neon B motor FL filter Q transistor w er photocell etc capacitor J jack cabie CR diode K relay R FELGE X socket DL delay line L inductor RT thermistor XF fusehoider DS device signaling amp M meter S switch XDS lamphoider E misc electronic part MP mechanical part T transformer Z network ABBREVIATIONS a mperes elect electrolytic mtg mounting rot rotary encap encapsulated my mylar rms root mean Square bp bandpass rmo rack mount only bwo backward wave H farads NC normally closed up 2 Blu show oscillator fxd fixed Ne neon Se AR c carbon NO normally open sect section s cer ceramic Ge germanium NPO negative positive Si silicon cmo cabinet mount only d ground ed zero zero temp sil silver coef coefficient irt REC ature coefficient sl slide com common h henries asr not separ
41. llowing is a complete Adjustment and Calibration Procedure for the hp Model 465A Amplifier These operations should be conducted only if it has previously been established by the Performance Checks Paragraph 5 5 that the Model 465A is out of adjustment Indescriminate adjustment of the internal controls to refine readings may actually cause more difficulty If the procedures outlined below do not rectify any discrepancies which may exist and all connections and settings have been rechecked refer to Paragraph 5 21 Trouble shooting Techniques for possible cause and recom mended corrective action 5 15 POWER SUPPLY ADJUST 45 V a A DC Voltmeter hp Model 3440A 3445A will be required for this test b Set voltmeter FUNCTION to DC RANGE to 100 9 4 c Connect positive lead to side of C20 common lead to common DC voltmeter should read 45 v 1 v d if not adjust R32 for proper reading 5 16 BIAS ADJUST R15 a A DC Voltmeter hp Model 34404 34454 will be required for this test b Set de voltmeter FUNCTION to DC RANGE to 100 V c Connect positive lead to side of C15 common lead to common DC voltmeter should read 23 v 40 5 v d If not adjust R15 to obtain proper reading 5 17 1 MC ADJUST C5 a A Test Oscillator hp Model 651A and an AC Voltmeter hp Model 331A will be required for this test b Set Model 465A GAIN to 20 db c Connect oscillator OUTPUT to Model 465A
42. n Resistor Carp Axet Brothers inc Rubber Teck inc Danvers Mass Yonkers N Y Jamaics W Y Gardena Calif Code No 30220 98278 28291 38405 38731 8821 8928 38578 99199 99313 95515 33707 9890 99848 99924 95942 93957 Model 465A Manufacturer Address Francis L Mosley Microdot lec Sealectt Corp Carad Corp Generel Mills North Hiis Eigetric Co Gteviie Transistor Prod Div of Clevite Corp international Electronic Reseaich Corp Columbia Technical Corp Varian Associates Marsha In usties Electron Prodacts Division Pasadena ahit Control Switch Division Controls Co of America Ef Segundo Calif Delevas Electronics Corp East Aurora NY Wilca Corporation Iseisnapelis iad Renbsas t int Boston Mass Hofiman Semiconductor Div of Hoffmae Electronics Corp Techeology instrument Corp af Calif Pasadena Calif So Pasadena Calif Mamaroneck R Y Redwood City Calif Minsespelis Kinn Mineola X Y Waltkem Mass Burbank Calif New York X Y Pale Alto Calif Evanston Hf Newbury Park Calif THE FOLLOWING H P VENDORS HAVE NO NUM BER ASSIGNED IN THE LATEST SUPPLEMENT TO THE FEDERAL SUPPLY CODE FOR MANUFAC TURERS HANDBOOK 30009 LC GOGH 6000 G0GEZ BIGAA 900A8 GOGAC 00033 COG GGGNN COCCO 60685 ECO GHYY S K Smite Co From Winchester Eiec ronses lac Santa Monica Catit Malco Faci and Die ios Angeles Calif Westese Coti
43. nc Newark 8 5 Dexland Catif Chicago Ill Philsdeipkia Pa Gudenan Co Chicago HI Rober M Hadtey Co Los Angeles Catif Erie Resisto Coro File Pa Hansen Mig Co lac H M Harper Ca Hettpot Div of Beckman instruments Inc Princeton feg Chicago iti Falleston Catif Galiey 3 Hewlett Packard Code List Cada No 73283 73445 73490 73506 13569 13582 73734 313 13793 73946 73898 73905 NC 74455 24861 T4868 14826 T8042 75373 75378 7538 75818 75918 26009 76210 76433 76487 78433 76536 16545 76854 77068 17075 7221 77250 77952 77342 71630 71638 77764 31989 7918 74283 78296 78462 34471 78488 78495 18553 78789 18947 79142 79281 19127 79963 40931 80129 89128 89131 80207 80223 86248 80294 80411 gose 30509 80583 80640 51030 1073 51095 31312 From Manufacturer Address Hughes Products Division of Hughes Aircraft Co Newport Seach Calif Ampesez Elecltonic Eo Div of North Amecican Philips Co inc Hizksville NY Beckman Helinet Comp So Pasadena Calif Bradfey Semicoadsrtor Corp Hamdes Gora Carling Electric inc Hartford Conn George K Garrett Co fac Phifadeiphia Pa Federsi Screw Prod Co Chicago Hi Fischer Special Mfg Co Cincinnati Ghis The General Industries Co Elyria Ohio Goshen Samping amp Fool Co Goshen Ind JFD Electronics Corp Brock yn N Y Jessiaps Radio Mfg Co Sas
44. ng through Q5 and Q6 A true 50 ohm output impedance for a proper match to the 50 ohm cable or instrument is provided by R26 C15 is the dc blocking capacitor for output R27 keeps the output voltage at zero volts dc 4 18 FEEDBACK CIRCUITRY 4 14 The feedback circuitry controls the amplifier gain by selecting the amount of voltage division by voltage divider R4 R5 and R6 C5provides phase lead to improve the phase margin around i Mc C4 and C14 eliminate transients during GAIN switching by preventing dc voltages from being appliedtothe divider Stick Negative feedback is applied to field effect transistor Q1 and differentially compared with the input which provides improved signal reproduction 4 15 REGULATED POWER SUPPLY 4 16 The regulated power supply provides the 45 volts used by the amplifier A filter circuit formed by Li L2 C22 and C23 prevents any interference from being fed into the instrument power line T1 CR4 CR5 and C16 form a full wave rectifier Diode CR6 sets a reference voltage for the emitter circuit of Q7 This reference voltage is compared to the power supply output by Q7 which amplifies the error signal to drive Q8 Transistor Q8 acting as a current amplifier drives series regulator Q9 Q8 also improves the gain by isolating Q7 C19 and R35 provide gain shaping for high frequency stability of the power supply amplifier C18 bootstraps R33 by driving it from the output of the regulator This increases
45. nic Tube Div Eveready Battery Made Eng and Mfg inc Loyd Seruggs Cs Arco Etecteonis inc A J Glesener Ea Inc Good AF Electric Mig Co Sarkes Tarzian Inc Boonton Molding Company A B Boyd Ca Breokfieid Mass Plainfield N H Kew York X Y Bunlizgtos Ind Festes Mo New York N Y San Francisco Calif Ogalisig Neb Bloomington Ind Beontoe 8 3 Sen Francisco Cali CODE LIST OF MANUFACTURERS Sheet 2 of 2 Code No 85475 85690 85941 86197 86879 86684 87216 57473 87564 27930 88149 68229 08698 39231 89462 B9473 69636 63665 30178 90979 91260 91345 3414 91506 31537 316627 31737 91827 91923 91961 92159 32196 8238 2807 93332 53368 93419 93788 APPENDIX Manufacturer Address R M Bracamonte amp Co Kailed Kords Inc Seamless Rubber Co Clifton Precision Products Precision Rubber Products Corp Radio Corp of America RCA Electron Tube Div Philco Corporation Langgate Bivisias Western Fibrous Glass Products Ca Sen Francisco Calif Seattle Wash Prsvidezce i Lincoin ill St Paul Mina Bettala N Y San Francisco Calif New Haven Conn Chicago ili Clifton Heights Pa Dayton Ghis Harrisen 8 4 Lansdale Pa Van Waters 4 Rogers inc Tower Mfg Corp Cutles Hammes inc Gould National Batteries lnc Genesa Mills iac Gtaybar Electric Co Oakland Calif aides Kohinoor fac Cambridge Mass
46. on the title page of this manual change sheets supplied with the manual will define differences between your instrument andthe Model 465A described in this manual 1 5 If the first three digits of the two section eight digit serial number are prefixed with an E or G your instrument was produced in Europe An E000 00000 serial number indicates that the instru ment was manufactured in England a G000 00000 serial number indicates that the instrument was manufactured in Germany 1 1 Model 465A Section II Paragraphs 2 1 to 2 17 SECTION H INSTALLATION 2 1 INTRODUCTION 2 2 This section contains information and instructions necessary for the installation and shipping of the Model 465A Amplifier Includedare initial inspection procedures power and grounding requirements installation information and instructions for repack aging for shipment 2 3 INITIAL INSPECTION 2 4 This instrument was carefully inspected both mechanically and electrically before shipment It Should be physically free of mars or scratches and be in perfect electrical order upon receipt To confirm this the instrument should be inspected for physical damage in transit Also check for suppliedaccessories and test the electrical performance of the instrument using the procedure outlined in Paragraph 5 5 If there is damage or deficiency see the warranty on the inside front cover of this manual 2 5 POWER REQUIREMENTS 2 6 TheModel465A Amplif
47. ors connected LINE VOLTAGE a two position slide switch in parallel with the INPUT terminais on the sets the 465A for 115 or 230 volt operation Figure 3 1 Front and Rear Panel Controls Indicators and Connectors REO 01775 1 Model 465A SECTION INSTRUCTIONS OPERATING 3 1 GENERAL 3 2 The Model 465A Amplifier can be operated as 1 a general purpose amplifier preamplifier 2 oscilioscope preamplifier 3 oscillator power ampli Ensure that transients greater than 200 vde or 25 vde are not applied to the input or output terminals respectively Otherwise damage to the Model 465A may result 01775 1 Section II Paragraphs 3 1 to 3 4 fier 4 impedance converter 5 x 108 power gain and 5 in system amplifier unit 3 3 DESCRIPTION OF CONTROLS 3 4 Figure 3 1 gives a description of the front panel and rear panel controls for the 465A Ensure that common terminals are connected before INPUT or OUTPUT terminals Otherwise damage to the Model 465A may result due to tran sients Model 465A Section IV Figure 4 1 inaino wered yog retrpdury YG9p OPON I p oanig 60 NYH L 20 ulcus AlddNS Y3MOd Li d31v31n93N SIINIS 43403104 0 83463104 H3llIW3 HAHA Id WV YILLIWI pH 7 2 Niv9 9 32v80333 ID EEE AV SIZ0 8 VS9v nam 01775 1 4 0 Model 465A Section IV Paragraphs 4 1 to 4 16 SECTION IV THEORY OF 4 1 INTRODUCTION 4 2
48. p Model 739AR andan AC Voltmeter hp Model 331A and 3440A 3445A will be required hp Model 3440A 3445A will be used for frequencies from 50 cps to 100 kc hp Model 331A will be used at ail other frequencies b ConnectModel 465 as shown in Figure 5 1 Set GAIN to 20 DB c Set ac voltmeter RANGE to 10 V 465A AMPLIFIER AC VOLTMETER d 3440A 3445A Frequency Response Check 9 1 Model 465A Section V Paragraphs 5 9 to 5 11 Table 5 2 Table 5 2 Frequency Response Test Oscillator F R T S AC Voltmeter hp Model 465A hp Model 651A hp Model 739AR hp Model 3440A 3445A or 331A GAIN Range Frequency Output Range Readings db cps Attenuator 5 9 9 2 d Set frequency response test set to EXTERNAL OUTPUT ATTENUATOR to 1 0 e Setoscillator frequency to 1 kc adjust output amplitude to provide ac voltmeter reading of 9 0 v f Adjust frequency response test set METER SET to convenient SET LEVEL g Resetoscillator frequency to 10 cps Adjust oscillator amplitude to re establish SET LEVEL if required AC voltmeter should read between 8 1 and 9 9 v h Repeat step g above for oscillator frequencies listed in Table 5 2 AC voltmeter should read within limits specified j When going from 20 db to 40 db re adjust oscillator output for ac voltmeter reading of 9 0v at 1 kc Reset frequency response test set METER SET for SET LEVEL Repeat above test using frequency setttings pro
49. re it is quite possible that additional measurements may be required to completely isolate the problem Com ponent values may vary slightly between instruments therefore it should not be necessary to precisely duplicate voltage values described 5 27 The conditions discussed in Table 5 5 and Figure 5 4 are based on the following criteria 1 the side of C14 is removed from circuit opening the feedback loop 2 Model 465A GAIN set to 40 db and 3 1 mv 2 kc signal applied to Model 465A INPUT Table 5 4 Front Panel Troubleshooting Front Panel Symptoms Possible Cause Line Lamp not glowing Functions properly on 20 db position only Functions properly on 40 db position only 01775 1 Check fuse F1 L1 L2 81 R28 2 or T1 Check R3 R4 R5 R6 and Bias Voltages Check Bias Voltages and Q1 Q2 Section V Model 465A Figure 5 4 and Table 5 5 4654 B 0218 Figure 5 4 Troubleshooting Tree Table 5 5 Troubleshooting Remove the side of C14 from the circuit T Check Q4 Q5 and Q6 Refer to Figure 5 8 board Set Model 465A GAIN to 40 db for typical dc voltage levels Apply a 1 0 mv 2 kc input signal 2 Measure the de voltage at the side of C20 Check Q1 Q2 and Q3 Refer to Figure 5 8 Should be 45 v 1 v If correct proceed to for typical dc voltage levels if incorrect go directly to 9 Observe the ac waveform at the Model 465A 9 Disconnect jumper wire at the side
50. resented in this section are front panel procedures designed to com pare the Model 465A withits published specifications These operations may be incorporated in periodic maintenance post repair orincoming quality control checks These operations should be conducted before any attempt is made to adjust or calibratethe instru ment During these operations the Model 465A power line voltage should be periodically varied 41005 A fifteen minute warm up period should be allowed prior to conducting these checks FREQUENCY RESPONSE TEST SET dp 739AR FEED TEST OSCILLATOR dy 651A 465A 8 0221 Figure 5 1 01775 1 THRU TERMINATION 5 8 a A Test Oscillator hp Model 651A and an AC Voltmeter hp Model 3440A 3445A will be required for this test b Set Model 465A to 20 db c Connect test oscillator OUTPUT to Model 465A INPUT Set oscillator frequency to 1 kc adjust amplitude for 1 00 v rms output verify with ac voltmeter d Connect ac voltmeter to Model 465A OUT PUT Voltmeter should read between 9 90 and 10 1 v If correct adjust oscillator output amplitude for ac voltmeter reading of 1 0 v as measured at output of 465A This corresponds to an input of 100 mv e Switch Model 465A to 40 db AC voltmeter should read between 9 90 and 10 1 v FREQUENCY RESPONSE CHECK a Figure 5 1 describes the test arrangement recommended A Test Oscillator hp Model 651A a Frequency Response Test Set h
51. ron Electronic Corp Wakefiel Mass Pyrotiim Resistor Co Marzistewn N J Air Marine Motors Inc ios Angeles Calif Agw Hart and Hegeman Elect Co Hartford Cona Lamberiviite X Now York N V Myrtle Beach C Tawus Carp Elmencs Products Co Hi Q Divisi n of Aetoyox Elgin K tional Watch Co Electonics Division Burbank Calif Precision Papes Tube Co Chicago ili Dyipec Divisi n of Hewlett Packard Co Pato Alte Calif Syivania Electric Prods ine Electronis Tube Div Mountain View Calif Motorola ine Seuicondects Prod Div Phoenix Arizona Filtron Ca Ine Western Div Culver City Calif Automatic Electric Co Northlake Ill Arlomatio Electric Sales Corp Nor hlaxe Ill Sequoia Wire amp Cable Co Redwood City Calif Precision Coil Spring Co Ei Monte Calif P M Motor Company Chicago 44 IIl Twestiel Century Plastics Inc Los Angeles Calif Westinphouse Electo Carp Semi Cogducte Dept Utlroniz lac l ismitronic Engineering Ca Cosmo Plastic ic o Electiscai Spec Co Barber Colman Co Tiffen Optical Co Roslya Reighis Long Istand N Y Melropotilae Teiecommanications Corp Metrz Cap Division Bisoklyh N Y Stewart Enginectiag Co Sarla Cruz Caii Wakefield Engineeriag lac Wakefieic Mass The Bassick Co Bridgeport Sone Bausch and Lom Optizat Co Rochester N Y E T A Prodects Co of America Chicago iti Western Devices inc imglewood Calif Ametom Esectrosic
52. s soeces 1 1 5 1 Introduction s e s s e o esa 5 1 1 3 Instrument Identification 1 1 9 3 Test Equipment Required 5 1 5 5 Performance Checks o Dm DB INSTALLATION 2 2 4 aaa aula amp 2 1 5 7 Accuracy and Gain Check 5 1 Ards Introduction 3 2 s sos seso 2 1 5 8 Frequency Response Check 00 1 2 3 Initial Inspection 2 1 5 9 Input Impedance Check 5 2 2 5 Power Requirements 2 1 5 10 Output Impedance Check 5 2 2 7 Grounding Requirements 2 1 5 11 Distortion Check 9 2 2 10 Installation gt 2 cow oss 2 1 5 12 Noise Check 2 2 5 4 2 12 Bench Mounting gt 6 4 el 5 13 Adjustment and Calibration 2 14 Rack Mounting ss s e 2 1 Procedures Kd da dw 9 4 2 16 Combination Mounting 2 1 5 15 Power Supply Adjust 445 v 5 4 5 16 Bias Adjust R15 s e 5 4 p 9 17 1 MC Adjust C5 5 4 ne EEE x 5 18 Servicing Etched Circuit Board 5 4 3 1 General 2 V oed 3 1 5 21 Troubleshooting Techni 5 5 3 3 Description of Controls 3 1 8 ing a s IV eu EORY OF OPERATION 4 1 VI REPLACEABLE PARTS 6 1 amp 1 Introduction 4 e es so eo au 4 1 6 1 Introduction A ca 6 1 4 3 General Circuit Description 4 1 6 4 Ordering Information n 6 1 4 5 Detailed Circuit Description 4 1 6 6 Non Listed Parts 6 1 4 7 First Amplification S
53. stortion should be less than 1 k Repeat the above test for oscillator fre quencies listed in Table 5 3 Entire test Should be repeated with Model 465A GAIN set to 40 db Refer to Table 5 3 for oscillator fre quencies and distortion tolerances Monitor frequency response test set SET LEVEL to insure constant oscillator output amplitude Table 5 3 Distortion Check Oscillator hp Model 651A Frequency Output hp Model 465A Gain db 1 i 1 1 o 0 0 0 01775 1 Frequency Distortion Analyzer hp Model 331A Maximum Disposition 9 3 Section V Paragraphs 5 12 to 5 17 Figure 5 3 STR 3 0089 Model 465A 1251 0174 1251 0175 0360 0042 0757 0059 Connector male Connector male w insulator Lug terminal 90 Resistor 1MQ 1 2 w 1 metal film 2190 0007 0380 0058 1251 0173 2470 0001 Washer int lock Spacer 6 32 threaded Shield Screw bind head 6 32 x 1 4 inches Figure 5 3 Shielded Load for Residual Noise Check 5 12 NOISE CHECK a An AC Voltmeter hp Model 331A anda 1 megohm shielded resistor refer to Figure 5 3 will be required for this test b Connect ac voltmeter to Model 465A OUT PUT RANGE to 003 V c Set Model 465A GAIN to 40 db d Connect 1 megohm shielded resistor across Model 465A INPUT e AC voltmeter must read less than 2 5 mv or 25 microvolts referred to input 5 13 ADJUSTMENT AND CALIBRATION PROCEDURE 5 14 The fo
54. tage 4 1 4 9 Second Amplification Stage 4 1 APPENDIX 4 11 Output Circuitry s e o 4 1 4 13 Feedback Circuitry 4 1 A CODE LIST OF MANUFACTURERS 4 15 Regulated Power Supply 4 1 B SALES AND SERVICE OFFICES LIST OF TABLES Number Page Number Page 1 1 Specifications s s e 0 1 0 5 4 Front Panel Troubleshooting 5 5 9 1 Test Equipment Required 5 0 9 5 Troubleshooting 2 a s 2 2 2 0 5 6 5 2 Frequency Response Test e 5 2 6 1 Reference Designation Index 6 2 9 3 Distortion Check asss 9 8 6 2 Replaceable Parts i 6 5 LIST OF ILLUSTRATIONS Number Page Number Page 1 1 Hewlett Packard Model 465A Amplifier 1 0 5 2 Distortion Check soa 2 2 s gt s oso 5 3 5 3 Shielded Load for Residual Noise Check 5 4 3 1 RUN and Rear op Controls 5 4 Troubleshooting Tree 5 6 Indicators and Connectors e e s 3 5 5 TopView 5 7 4 1 Model 465A Amplifier Block Diagram 4 0 5 6 Printed Circuit Board Parts Location 5 8 5 1 Frequency Response Check 5 1 5 7 Amplifier Schematic 5 9 5 10 01775 1 iii Section I Model 465A Figure 1 1 and Table 1 1 Figure 1 1 Hewlett Packard Model 465A Amplifier Table 1 1 Specifications Voltage Gain 20 db X10 or 40 db X100 open Distortion 1 5 cps to 100 ke 2 100 kc to circuit 1 Mc Gain Ac
55. the voltage gain of Q7 which improves voltage regulation of the power supply Resistors R30 R31 and R32 provide a divided de voltage pro portional to the dc outputand close to the reference voltage provided by CR6 This gives Q7 its bias and reference signal which controls the series regulator C17 couples all ac output to Q7 to provide better ripple reduction 4 1 Section V Model 465A Table 5 1 Table 5 1 Test Equipment Required Critical Specifications ve Recommended Model DC Voltmeter Accuracy 2 Performance Checks hp Model 3440A 3445A Voltage Range 50 v full scale AC DC Digital Voltmeter Test Oscillator F i T Range 10 cpsto Performance Checks hp Model 651A Test Voltage Output 1 v Oscillator Oscilloscope AC Voltmeter Variable Voltage Line Transformer Frequency 2 kc Vertical Sensitivity 10 v cm Troubleshooting hp Model 130C Oscilloscope Accuracy 1 100 cps to Performance Checks hp Model 3440A 3445A 50 ke AC DC Digital Voltmeter 2 10 cps to hp Model 331A i Me Distortion Analyzer Voltage Range 10 y Frequency Range 10 cps to Voltage Range 103 5 to 126 5 v Output Power 10 watts Ohms Range 10 M ohms Troubleshooting Frequency Response Frequency 10 cps to i Mc Performance Checks Test Set with external oscillator quency Response Test Voltage Output 10 v Set Distortion Analyzer Frequency 10 cps to 50
56. vided in Table 5 2 INPUT IMPEDANCE CHECK a A Test Oscillator hp Model 651A an AC Voltmeter hp Model 3440A 3445A and a 1M ohm 1 1 2 watt resistor hp Part No 0757 0059 will be required b Set Model 465A GAIN to 20 db c Connect ac voltmeter to Model 465A OUT PUT Set RANGE to 10 V d Connect oscillator OUTPUT to Model 465A INPUT Set oscillator frequency to 100 cps adjust output amplitude for ac voltmeter reading of 10 v e Insert 1 M ohm resistor in series with osci 9 0 v 08 1 to 09 9 v 08 9 to 09 1 v 08 9 to 09 1 v 7 2 to 10 8 y 9 0 v 08 11009 9 v 08 9 to 09 1 v 08 9 to 09 1v 1 2 to 10 8 v llator and Model 465A INPUT resistor must be connected directly to Model 465A INPUT with nothing else across input terminals AC voltmeter should read approximately 9 1 v 0 4v This verifies a Model 465A input resistance of 10 M ohms f Resetoscillator frequency to 10 kc Insure that oscillator output is still 1 0 v AC volt meter should read more than 6 0 v This verifies a Model 465A input impedance of 10 M ohms Shunted by 20 pf 9 10 OUTPUT IMPEDANCE CHECK a Test Oscillator hp Model 651A an AC Voltmeter hp Model 331A and a 50 ohm 1 1 watt resistor hp Part No 0727 0024 will be required for this test b Set Model 465A GAIN to 20 db Connectac voltmeter to Model 465A OUT PUT set RANGE to 10 V d Connect oscillator OUTPUT to Model 465A INPUT Set
57. yama Kitamachi Akasaka Minato ku Tokyo Tel 403 0073 403 0074 403 0075 Yokogawa Hewlett Packard Ltd No 8 Umeda Kita ku Osaka City Tel 361 3084 341 2095 Yokogawa Hewlett Packard Ltd No 4 3 chome Himeikedori Chigusa ku Nagoya City Tel 75 8545 KOREA American Trading Company Korea Ltd 112 35 Sokong Dong Seoul P 0 Box 1103 Seoul Tel 3 7049 3 7613 NETHERLANDS Hewlett Packard Benelux NV 23 Burg Roelistraat Amsterdam W Tel 020 13 28 98 and 13 54 99 NEW ZEALAND Sample Electronics N Z Ltd 8 Matipo Street Onehunga S E 5 Auckland Tel 565 361 NORWAY Morgenstierne amp Co A S Ingenigrfirma 6 Wessels Gate Oslo Tei 20 16 35 PORTUGAL Telectra Rua Rodrigo da Fonseca 103 P 0 Box 2531 Lisbon 1 Tel 68 60 72 and 68 60 73 and 68 60 74 PUERTO RICO amp VIRGIN ISLANDS San Juan Electronics inc 150 Ponce de Leon Stop 3 P 0 Box 5167 Pta de Tierra Sta San Juan 00906 Tel 722 3342 724 4406 SPAIN ATAIO Ingenieros A Aguilera No 8 Madrid 15 Tei 223 27 42 223 41 71 and 224 84 97 SOUTH AFRICA F H Flanter amp Co Pty Ltd Roselia House Buitencingle Street Cape Town Tel 3 3817 SWEDEN H P Instrument AB Centralvagen 28 Solna Centrum Tei 08 83 08 30 and 10 83 08 30 SWITZERLAND Max Pual Frey Wankdorifeldstrasse 66 Bern Tel 031 42 00 78 TAIWAN FORMOSA Hwa Sheng Electronic Co Ltd 21 Nanking West Road Taipei Tei 4 6076 4 5936 TURKEY TELEKOM Engineering Bureau

HP 465A User's Manual

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