Schematics, Service manual or circuit diagram
for RI Schematic £1.80 ($2.30, €2.0)

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List of 14 RI models
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Year Book/
File Type/
RI 4511947TraderTrader-813-1947RadiopdfRI 451 schematic circuit diagram
RI 4911948TraderTrader-887-1948RadiopdfRI 491 schematic circuit diagram
RI 4931948TraderTrader-887-1948RadiopdfRI 493 schematic circuit diagram
RI 493-FileRI-493FilepdfRI 493 schematic circuit diagram
RI 4 Valve Battery Portable1935Bcast1935: JunRadio53RI 4 Valve Battery Portable schematic circuit diagram
RI 4 Valve Portable ;Battery1935Bcast1935: JunRadio53RI 4 Valve Portable ;Battery schematic circuit diagram
RI Airflo1934Bcast1934: DecRadio152RI Airflo schematic circuit diagram
RI Airflo1947TraderTrader-813-1947RadiopdfRI Airflo schematic circuit diagram
RI Aria1947TraderTrader-807-1947RadiopdfRI Aria schematic circuit diagram
RI Duotone1934Bcast1934: DecRadio152RI Duotone schematic circuit diagram
RI Madrigal-FileRI-MadrigalFilepdfRI Madrigal schematic circuit diagram
RI Moderne1934Bcast1934: DecRadio152RI Moderne schematic circuit diagram
RI Ritz1934Bcast1934: DecRadio152RI Ritz schematic circuit diagram
RI Ritz-FileRI-RitzFilepdfRI Ritz 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 14:08 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".

(193683 schematics* by 1685 different manufacturers indexed!)
Updated 27th. Nov 2020

Some free books and stuff you might find helpful in repairing your radio.

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