Schematics, Service manual, or circuit diagram
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47 Portogram models listed, I usually send them all !


Model
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Portogram 20-FilePortogram_Preil-20_Twenty.AmpRecord
Player
pdfPortogram 20 schematic circuit diagram
Portogram Audio tape1962RTV1962Radio260
Portogram Audio tape schematic circuit diagram
To Scan
Portogram Audio Tape Recorder1962FilePortogram-Audio Tape Recorder-1962.RTV.TapeTapepdfPortogram Audio Tape Recorder schematic circuit diagram
Portogram Auto4Gram1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram Auto4Gram schematic circuit diagram
Portogram Auto 4 Gram1960RTV1960Radio222
Portogram Auto 4 Gram schematic circuit diagram
To Scan
Portogram AutoGram1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram AutoGram schematic circuit diagram
Portogram Auto gram1960RTV1960Radio222
Portogram Auto gram schematic circuit diagram
To Scan
Portogram Auto Slim1962FilePortogram-Auto Slim_Super BabyGram-1962.RTV.GramRecord
Player
pdfPortogram Auto Slim schematic circuit diagram
Portogram Auto slim1962RTV1962Radio260
Portogram Auto slim schematic circuit diagram
To Scan
Portogram BabyGram1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram BabyGram schematic circuit diagram
Portogram Babygram1960RTV1960Radio222
Portogram Babygram schematic circuit diagram
To Scan
Portogram -FilePortogram-Varsity_Varsity A_Varsity B_Varsity C
_.RTV.Gram
Record
Player
pdfPortogram  schematic circuit diagram
Portogram Gloria1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram Gloria schematic circuit diagram
Portogram Gloria1960RTV1960Radio222
Portogram Gloria schematic circuit diagram
To Scan
Portogram Gloria Console1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram Gloria Console schematic circuit diagram
Portogram Gloria console1960RTV1960Radio222
Portogram Gloria console schematic circuit diagram
To Scan
Portogram HF101960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram HF10 schematic circuit diagram
Portogram HF101960RTV1960Radio222
Portogram HF10 schematic circuit diagram
To Scan
Portogram HF101961RTV1961Radio216
Portogram HF10 schematic circuit diagram
To Scan
Portogram HF10-FilePortogram-HF10_Twinette.RTV.GramRecord
Player
pdfPortogram HF10 schematic circuit diagram
Portogram J8-FilePortogram-J8_Junior 8.GramRecord
Player
pdfPortogram J8 schematic circuit diagram
Portogram Junior 8-FilePortogram-J8_Junior 8.GramRecord
Player
pdfPortogram Junior 8 schematic circuit diagram
Portogram Mini tape1963RTV1963Radio250
Portogram Mini tape schematic circuit diagram
To Scan
Portogram MonoTape1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram MonoTape schematic circuit diagram
Portogram Monotape1960FilePortogram-Monotape_PortoTape-1960.RTVFilepdfPortogram Monotape schematic circuit diagram
Portogram Mono tape1960RTV1960Radio223
Portogram Mono tape schematic circuit diagram
To Scan
Portogram PortoGram HF101960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram PortoGram HF10 schematic circuit diagram
Portogram PortoTape1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram PortoTape schematic circuit diagram
Portogram PortoTape1960FilePortogram-Monotape_PortoTape-1960.RTVFilepdfPortogram PortoTape schematic circuit diagram
Portogram Porto tape1960RTV1960Radio223
Portogram Porto tape schematic circuit diagram
To Scan
Portogram Recordio1963RTV1963Radio250
Portogram Recordio schematic circuit diagram
To Scan
Portogram RG523-FilePortogram-RG523.RadioRadiopdfPortogram RG523 schematic circuit diagram
Portogram Super BabyGram1962FilePortogram-Auto Slim_Super BabyGram-1962.RTV.GramRecord
Player
pdfPortogram Super BabyGram schematic circuit diagram
Portogram Super baby gram1962RTV1962Radio260
Portogram Super baby gram schematic circuit diagram
To Scan
Portogram TRU3D-FilePortogram-TRU3D(ERT-1127).GramRecord
Player
pdfPortogram TRU3D schematic circuit diagram
Portogram Twenty-FilePortogram_Preil-20_Twenty.AmpRecord
Player
pdfPortogram Twenty schematic circuit diagram
Portogram Twinette1960FilePortogram-BabyGram_Auto4Gram_Gloria_Gloria Console
_HF10_PortoGram HF10_Twinette_AutoGram_MonoTape
_PortoTape-1960.RTV
FilepdfPortogram Twinette schematic circuit diagram
Portogram Twinette1960RTV1960Radio222
Portogram Twinette schematic circuit diagram
To Scan
Portogram Twinette1961RTV1961Radio216
Portogram Twinette schematic circuit diagram
To Scan
Portogram Twinette-FilePortogram-HF10_Twinette.RTV.GramRecord
Player
pdfPortogram Twinette schematic circuit diagram
Portogram Unimidge-FilePortogram-Unimidge.RadioRadiopdfPortogram Unimidge schematic circuit diagram
PortoGram Varsity1961RTV1961Record
Player
216
PortoGram Varsity schematic circuit diagram
To Scan
Portogram Varsity1961RTV1961Radio216
Portogram Varsity schematic circuit diagram
To Scan
Portogram Varsity A-FilePortogram-Varsity_Varsity A_Varsity B_Varsity C
_.RTV.Gram
Record
Player
pdfPortogram Varsity A schematic circuit diagram
Portogram Varsity B-FilePortogram-Varsity_Varsity A_Varsity B_Varsity C
_.RTV.Gram
Record
Player
pdfPortogram Varsity B schematic circuit diagram
Portogram Varsity C-FilePortogram-Varsity_Varsity A_Varsity B_Varsity C
_.RTV.Gram
Record
Player
pdfPortogram Varsity C schematic circuit diagram
Portogram Varsity-FilePortogram-Varsity_Varsity A_Varsity B_Varsity C
_.RTV.Gram
Record
Player
pdfPortogram Varsity schematic circuit diagram

These radio, TV, record player, amplifier, amp 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 in the UK it is 09:09 it may take a little longer! If more than one schematic is listed for a model I will generally send them all, unless too big to attach!
Specialising in British schematics Roberts, Hacker, Bush, Pye etc. also American and German manuals feature strongly, search for what you need. Multi page manuals are Emailed as pdfs. Please Email or phone 0788 4425213 Thanks for looking, Mike.
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90V/1.4V Battery Eliminator

90V/1.4V battery eliminators available at £29 For other voltage combinations Email me!

Search for your Schematic



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 :-
Book Set KEY Years
J.F. Rider's Perpetual Rider 1920-54
Trader Service sheets Trader 1933-81
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
RCA Service Notes RCASN 1923-52
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 =>2021
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".

(294958 schematics* by 2173 different manufacturers indexed!)
Updated 3rd. Dec 2021

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