Schematics, Service manual or circuit diagram
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13 Cromwell models


Model
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Year Book/
Source
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Cromwell 10101950Rider20Mercantile Stores1Cromwell 1010 schematic circuit diagram
CROMWELL 10101950SM88?2CROMWELL 1010 schematic circuit diagram
Cromwell 10201950Rider20Mercantile Stores3Cromwell 1020 schematic circuit diagram
CROMWELL 10201950SM89?5CROMWELL 1020 schematic circuit diagram
Cromwell 10391949FileHMV-4910 D_4910 RG
_4910 AW6_Windsor
_Sherwood(Cromwell
-1039_1139)-1949
.RadioGram
Radio
Gram
pdfCromwell 1039 schematic circuit diagram
Cromwell 11391949FileHMV-4910 D_4910 RG
_4910 AW6_Windsor
_Sherwood(Cromwell
-1039_1139)-1949
.RadioGram
Radio
Gram
pdfCromwell 1139 schematic circuit diagram
Cromwell 2051948Rider17Misc W.T.Knott8Cromwell 205 schematic circuit diagram
Cromwell 6511947Rider15Misc W.T.Knott9Cromwell 651 schematic circuit diagram
Cromwell 6531947Rider15Misc W.T.Knott9Cromwell 653 schematic circuit diagram
Cromwell 65411947Rider15Misc W.T.Knott9Cromwell 6541 schematic circuit diagram
Cromwell 65451947Rider15Misc W.T.Knott9Cromwell 6545 schematic circuit diagram
Cromwell 65471947Rider15Misc W.T.Knott9Cromwell 6547 schematic circuit diagram
Cromwell 65601947Rider15Misc W.T.Knott9Cromwell 6560 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 16:52 in the UK) it may take a little longer!
If more than one schematic is listed for a model I will 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 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 1933-81
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
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".

(287229 schematics* by 2159 different manufacturers indexed!)
Updated 6th. May 2021

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