Schematics, Service manual or circuit diagram
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List of 74 HP models
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HP 140B Oscilloscope-FileHP-140B OscilloscopeFilepdfHP 140B Oscilloscope schematic circuit diagram
HP 140T-FileHP-140T.SpectrumAnalyserDisplay SectionFilepdfHP 140T schematic circuit diagram
HP 1821A-FileHP-1821A.Time baseFilepdfHP 1821A schematic circuit diagram
HP 204c-FileHP-204c.OscilatorFilepdfHP 204c schematic circuit diagram
HP 204C-FileHP-204C.OscillatorFilepdfHP 204C schematic circuit diagram
HP 206A1948FileHP-206A-1948.SigGenFilepdfHP 206A schematic circuit diagram
HP 214B-FileHP-214B.PulseGeneratorFilepdfHP 214B schematic circuit diagram
HP 3200B-FileHP-3200B.VHFOscillatorFilepdfHP 3200B schematic circuit diagram
HP 3300A1980FileHP-3300A-1980.Signal GeneratorFilepdfHP 3300A schematic circuit diagram
HP 3302A1966FileHP-3302A-1966.Trigger LockFilepdfHP 3302A schematic circuit diagram
HP 330B-FileHP-330B.DistortionAnalyserFilepdfHP 330B schematic circuit diagram
HP 333A-FileHP-333A_334A.DistortionAnalyserFilepdfHP 333A schematic circuit diagram
HP 334A-FileHP-333A_334A.DistortionAnalyserFilepdfHP 334A schematic circuit diagram
HP 339A1979FileHP-339A-1979.DistortionMeterFilepdfHP 339A schematic circuit diagram
HP 3403C1977FileHP-3403C-1977.True RMS VoltmeterFilepdfHP 3403C schematic circuit diagram
HP 3406A1966FileHP-3406A-1966.Broadband Sampling VoltmeterFilepdfHP 3406A schematic circuit diagram
HP 34702A1979FileHP-34702A-1979.DVMFilepdfHP 34702A schematic circuit diagram
HP 3478A1987FileHP-3478A-1987.DVMFilepdfHP 3478A schematic circuit diagram
HP 3490A1972FileHP-3490A-1972.DVMFilepdfHP 3490A schematic circuit diagram
HP 3760A1973FileHP-3760A-1973.Data GeneratorFilepdfHP 3760A schematic circuit diagram
HP 400D-FileHP-400D_400H_400L
.VVM
FilepdfHP 400D schematic circuit diagram
HP 400H-FileHP-400D_400H_400L
.VVM
FilepdfHP 400H schematic circuit diagram
HP 400L-FileHP-400D_400H_400L
.VVM
FilepdfHP 400L schematic circuit diagram
HP 410B-FileHP-410B.VVMFilepdfHP 410B schematic circuit diagram
HP 419A-FileHP-419A.DCNullVoltmeterFilepdfHP 419A schematic circuit diagram
HP 428B-FileHP-428B.DCmilliampmeterFilepdfHP 428B schematic circuit diagram
HP 432C-FileHP-432C.PowerMeterFilepdfHP 432C schematic circuit diagram
HP 48001981FileHP-4800A_4800-1981
.Impedance meter
FilepdfHP 4800 schematic circuit diagram
HP 4800A1981FileHP-4800A_4800-1981
.Impedance meter
FilepdfHP 4800A schematic circuit diagram
HP 521A-FileHP-521A_521C.CounterFilepdfHP 521A schematic circuit diagram
HP 521C-FileHP-521A_521C.CounterFilepdfHP 521C schematic circuit diagram
HP 5252A1965FileHP-5252A-1965.PrescalerFilepdfHP 5252A schematic circuit diagram
HP 5253B1967FileHP-5253B-1967.Frequency ConverterFilepdfHP 5253B schematic circuit diagram
HP 5257A1971FileHP-5257A-1971.Transfer OscillatorFilepdfHP 5257A schematic circuit diagram
HP 52651974FileHP-5265A_5265-1974
.DVM
FilepdfHP 5265 schematic circuit diagram
HP 5265A1974FileHP-5265A_5265-1974
.DVM
FilepdfHP 5265A schematic circuit diagram
HP 5305A1975FileHP-5305A-1975.CounterFilepdfHP 5305A schematic circuit diagram
HP 5305B1976FileHP-5305B-1976.CounterFilepdfHP 5305B schematic circuit diagram
HP 5345A1974FileHP-5345A-1974.CounterFilepdfHP 5345A schematic circuit diagram
HP 5382A1974FileHP-5382A-1974.CounterFilepdfHP 5382A schematic circuit diagram
HP 54201A1986FileHP-54201A_54201D
-1986.Oscilloscope
FilepdfHP 54201A schematic circuit diagram
HP 54201D1986FileHP-54201A_54201D
-1986.Oscilloscope
FilepdfHP 54201D schematic circuit diagram
HP 545011989FileHP-54501-1989.OscilloscopeFilepdfHP 54501 schematic circuit diagram
HP 606A-FileHP-606A.SignalGeneratorFilepdfHP 606A schematic circuit diagram
HP 608E-FileHP-608E_608F.VHH Signal GeneratorFilepdfHP 608E schematic circuit diagram
HP 608F-FileHP-608E_608F.VHH Signal GeneratorFilepdfHP 608F schematic circuit diagram
HP 612A-FileHP-612A.UHF Signal GeneratorFilepdfHP 612A schematic circuit diagram
HP 618C-FileHP-620B_618C.SHF Signal GeneratorFilepdfHP 618C schematic circuit diagram
HP 62051980FileHP-6205B_6205-1980
.PSU
PSUpdfHP 6205 schematic circuit diagram
HP 6205B1980FileHP-6205B_6205-1980
.PSU
PSUpdfHP 6205B schematic circuit diagram
HP 620B-FileHP-620B_618C.SHF Signal GeneratorFilepdfHP 620B schematic circuit diagram
HP 6212B1982FileHP-6212B_6214B_6216B
_6218B-1982.PSU
PSUpdfHP 6212B schematic circuit diagram
HP 6214B1982FileHP-6212B_6214B_6216B
_6218B-1982.PSU
PSUpdfHP 6214B schematic circuit diagram
HP 6216B1982FileHP-6212B_6214B_6216B
_6218B-1982.PSU
PSUpdfHP 6216B schematic circuit diagram
HP 6218B1982FileHP-6212B_6214B_6216B
_6218B-1982.PSU
PSUpdfHP 6218B schematic circuit diagram
HP 6296A1990FileHP-6296A-1990.PSUPSUpdfHP 6296A schematic circuit diagram
HP 6434B1967FileHP-6434B-1967.PSUPSUpdfHP 6434B schematic circuit diagram
HP 711A1954FileHP-711A-1954.PSUPSUpdfHP 711A schematic circuit diagram
HP 8010A1970FileHP-8010A-1970.Pulse GeneratorFilepdfHP 8010A schematic circuit diagram
HP 8012B1977FileHP-8012B-1977.Pulse GeneratorFilepdfHP 8012B schematic circuit diagram
HP 8013A1971FileHP-8013A-1971.Pulse GeneratorFilepdfHP 8013A schematic circuit diagram
HP 8406A1980FileHP-8406A-1980.Frequency Comb GeneratorFilepdfHP 8406A schematic circuit diagram
HP 8444A1980FileHP-8444A-1980.Tracking GeneratorFilepdfHP 8444A schematic circuit diagram
HP 8552B1974FileHP-8552B-1974.Spectrum Analyzer IF SectionFilepdfHP 8552B schematic circuit diagram
HP 8555A1978FileHP-8555A-1978.Spectrum Analyser RF SectionFilepdfHP 8555A schematic circuit diagram
HP 8601A1969FileHP-8601A-1969.Sweep GeneratorFilepdfHP 8601A schematic circuit diagram
HP 8614A1965FileHP-8614A-1965.Signal GeneratorFilepdfHP 8614A schematic circuit diagram
HP 8620C1977FileHP-8620C-1977.Sweep OscillatorFilepdfHP 8620C schematic circuit diagram
HP 86260A1981FileHP-86260A-1981.RF Plug inFilepdfHP 86260A schematic circuit diagram
HP 8640B1986FileHP-8640B-1986.Signal GeneratorFilepdfHP 8640B schematic circuit diagram
HP 8743a1979FileHP-8743a-1979.Reflection Transmission Test UnitFilepdfHP 8743a schematic circuit diagram
HP AC4A-FileHP-AC4A_AC4B_Decade CounterFilepdfHP AC4A schematic circuit diagram
HP AC4B-FileHP-AC4A_AC4B_Decade CounterFilepdfHP AC4B schematic circuit diagram
HP Decade Counter-FileHP-AC4A_AC4B_Decade CounterFilepdfHP Decade Counter schematic circuit diagram

These radio, TV, record player and tape or cassette recorder schematics,circuit diagrams and service manuals are mostly high quality, very readable scans and will usually be Emailed within an hour or two, if I need to scan an item, or it's the middle of the night here (it is 22:16 in the UK) it may take a little longer! Specialising in British schematics Roberts, Hacker, Bush etc. also American and German manuals feature strongly, search for what you need. Multi page manuals are Emailed as pdfs. Please Email if you have any queries, or you require any vintage parts for your repair I'll let you know what I have! Thanks for looking, Mike.
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Fill in the "Make" and "Model" boxes, if you are unsure of the model, leave it blank and I will list ALL models for that manufacturer, similarly if you only have the model number leave "Make" blank and I will list similar model names from ALL manufacturers.
More explanation here. Some sources searched :-
J.F. Rider's Perpetual Rider 1920-54
Trader Service sheets Trader 1933-69
Beitman's Radio Diags Beitman 1926-69
Beitman's TV Diagrams Beitman 1947-70
Gernsback Radio Diags. Gernsback 1922-34
Empfanger Schaltungen ES 1928-57
Broadcaster Supplements Broadcaster 1934-42
Radio and TV 36 vol set RTV 1945-86
Radio and TV 5 vol set RTV5 1945-54
Crosley Service Suppls. Crosley 1929-42
My Pre-scanned Files File
The search logic is slightly "fuzzy" in that it's case insensitive and ignores punctuation so, model TR-510 is the same as tr510, and G.E.C is the same as "gec".

(193896 schematics* by 1684 different manufacturers indexed!)
Updated 29th. Nov 2020


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