American Transformer Schematics, Service
manual or circuit diagram £1.80 (~ $2.20 or €2.10)

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211 American Transformer models listed

Model Click to Order!	Year	Book/ Source	File	Type/ Volume	Page/ Ext
American Transformer 100	1932	Gernsback	Gernsback 3	Car Radio	665-667
American Transformer 100	1933	Gernsback	Gernsback 1 Auto	Car Radio	234
American Transformer 100AR	1934	Rider	Rider 5	American Transformer	1
American Transformer 120	1932	Gernsback	Gernsback 3	Radio	668
American Transformer 120139	1933	Rider	Rider 2	American Transformer	11
American Transformer 160 ;AC	1934	Gernsback	Gernsback 5	Radio	870
American Transformer 160 ;AVC	1931	Gernsback	Gernsback 2	Radio	182J
American Transformer 2 AP	1930	Gernsback	Gernsback 1	Amplifier	342
American Transformer 200 ;Series Short Wave	1931	Gernsback	Gernsback 2	Radio	468A-468G
American Transformer 200	1933	Rider	Rider 3	GM	3
American Transformer 21 D ;High Power Box	1930	Gernsback	Gernsback 1	Amplifier	342
American Transformer 210 ;Power Amp	1933	Rider	Rider 1	American Transformer	1
American Transformer 220	1931	Gernsback	Gernsback 2	Radio	468H-468P
American Transformer 240 ;AC	1934	Gernsback	Gernsback 5	Radio	871
American Transformer 241	1934	Rider	Rider 5	American Transformer	2
American Transformer 25 160	1934	Gernsback	Gernsback 5	Radio	870
American Transformer 25 240	1934	Gernsback	Gernsback 5	Radio	871
American Transformer 25 260	1932	Gernsback	Gernsback 3	Radio	669
American Transformer 25 280	1934	Gernsback	Gernsback 5	Radio	872
American Transformer 25 51	1930	Gernsback	Gernsback 1	Radio	328
American Transformer 25 53	1930	Gernsback	Gernsback 1	Radio	328
American Transformer 25 55	1930	Gernsback	Gernsback 1	Radio	328
American Transformer 25 90	1930	Gernsback	Gernsback 1	Radio	328A
American Transformer 25 91	1930	Gernsback	Gernsback 1	Radio	328A
American Transformer 25 94	1931	Gernsback	Gernsback 2	Radio	458-459
American Transformer 250 ;Power Amp	1933	Rider	Rider 1	American Transformer	2
American Transformer 25160	1933	Rider	Rider 3	American Transformer	1
American Transformer 25220	1933	Rider	Rider 3	American Transformer	5
American Transformer 25260	1934	Rider	Rider 4	American Transformer	2
American Transformer 25280	1933	Rider	Rider 3	American Transformer	8
American Transformer 2540	1933	Rider	Rider 1	American Transformer	5
American Transformer 2561	1933	Rider	Rider 1	American Transformer	7
American Transformer 2594	1933	Rider	Rider 2	American Transformer	5
American Transformer 25A ;Power Amp	1933	Rider	Rider 1	American Transformer	1
American Transformer 25A	1930	Gernsback	Gernsback 1	Amplifier	334A
American Transformer 260	1932	Gernsback	Gernsback 3	Radio	669 670 672
American Transformer 280 ;AC	1934	Gernsback	Gernsback 5	Radio	871
American Transformer 280	1932	Gernsback	Gernsback 3	Radio	674
American Transformer 300	1933	Gernsback	Gernsback 4	Radio	268-269
American Transformer 320	1933	Gernsback	Gernsback 4	Radio	270
American Transformer 340	1933	Gernsback	Gernsback 4	Radio	271-272
American Transformer 360	1933	Gernsback	Gernsback 4	Radio	273
American Transformer 360	1934	Rider	Rider 5	American Transformer	3
American Transformer 40	1931	Gernsback	Gernsback 2	Radio	456 457 463 329(V3)
American Transformer 40	1933	Rider	Rider 1	Steinite	1
American Transformer 400 ;AC DC	1934	Gernsback	Gernsback 5	Radio	866
American Transformer 422 ;AC DC	1934	Gernsback	Gernsback 5	Radio	867
American Transformer 422	1934	Rider	Rider 4	American Transformer	7
American Transformer 423 ;AC DC	1934	Gernsback	Gernsback 5	Radio	867
American Transformer 423	1934	Rider	Rider 4	American Transformer	7
American Transformer 425	1934	Rider	Rider 4	American Transformer	8
American Transformer 440	1934	Rider	Rider 4	American Transformer	9
American Transformer 450	1934	Rider	Rider 4	American Transformer	10
American Transformer 470	1934	Gernsback	Gernsback 5	Radio	868
American Transformer 470	1934	Rider	Rider 4	American Transformer	11
American Transformer 472 ;Same as 470	1934	Gernsback	Gernsback 5	Radio	868
American Transformer 472	1934	Rider	Rider 4	American Transformer	11
American Transformer 480	1934	Beitman	Beitman 1926-38	Transformer Co	203
American Transformer 480	1934	Gernsback	Gernsback 5	Radio	869
American Transformer 480	1934	Rider	Rider 4	American Transformer	12
American Transformer 490	1934	Rider	Rider 5	American Transformer	4
American Transformer 500	1934	Rider	Rider 5	American Transformer	5
American Transformer 51 ;AC	1933	Rider	Rider 1	American Transformer	3
American Transformer 51	1930	Beitman	Beitman 1926-38	Transformer Co	202
American Transformer 51	1930	Gernsback	Gernsback 1	Radio	328
American Transformer 53 ;AC	1933	Rider	Rider 1	American Transformer	3
American Transformer 53	1930	Beitman	Beitman 1926-38	Transformer Co	202
American Transformer 53	1930	Gernsback	Gernsback 1	Radio	328
American Transformer 55 ;AC	1933	Rider	Rider 1	American Transformer	3
American Transformer 55	1930	Beitman	Beitman 1926-38	Transformer Co	202
American Transformer 55	1930	Gernsback	Gernsback 1	Radio	328
American Transformer 60	1930	Gernsback	Gernsback 1	Radio	355
American Transformer 61	1931	Gernsback	Gernsback 2	Radio	460 462
American Transformer 70	1931	Gernsback	Gernsback 2	Radio	460-462
American Transformer 80	1931	Gernsback	Gernsback 2	Radio	465
American Transformer 83	1931	Gernsback	Gernsback 2	Radio	466
American Transformer 84	1932	Gernsback	Gernsback 3	Radio	662-664
American Transformer 85	1932	Gernsback	Gernsback 3	Radio	662-664
American Transformer 90	1930	Gernsback	Gernsback 1	Radio	328A 464(V2)
American Transformer 91	1930	Gernsback	Gernsback 1	Radio	328A
American Transformer 91A	1930	Gernsback	Gernsback 1	Radio	328A
American Transformer 92	1931	Gernsback	Gernsback 2	Radio	467
American Transformer 94	1931	Gernsback	Gernsback 2	Radio	458-459
American Transformer A B C Power Unit	1930	Gernsback	Gernsback 1	Amplifier	26
American Transformer A60	1936	Gernsback	Gernsback 7	Radio	580
American Transformer AC100	1933	Rider	Rider 2	American Transformer	7
American Transformer AC160	1933	Rider	Rider 3	American Transformer	1
American Transformer AC220	1933	Rider	Rider 3	American Transformer	5
American Transformer AC240	1933	Rider	Rider 2	American Transformer	12
American Transformer AC240	1934	Rider	Rider 4	American Transformer	1
American Transformer AC260	1934	Rider	Rider 4	American Transformer	2
American Transformer AC280	1933	Rider	Rider 3	American Transformer	8
American Transformer AC300	1934	Rider	Rider 4	American Transformer	4
American Transformer AC320	1934	Rider	Rider 4	American Transformer	5
American Transformer AC340	1934	Rider	Rider 4	American Transformer	6
American Transformer AC420	1933	Rider	Rider 3	American Transformer	10
American Transformer AC60	1933	Rider	Rider 1	American Transformer	5
American Transformer AC61	1933	Rider	Rider 1	American Transformer	7
American Transformer AC70	1933	Rider	Rider 1	American Transformer	7
American Transformer AC80	1933	Rider	Rider 1	American Transformer	10
American Transformer AC81	1933	Rider	Rider 1	American Transformer	10
American Transformer AC90	1933	Rider	Rider 1	American Transformer	10
American Transformer AC90A	1933	Rider	Rider 1	American Transformer	10
American Transformer AC91	1933	Rider	Rider 1	American Transformer	10
American Transformer AC94	1933	Rider	Rider 2	American Transformer	2 5
American Transformer AC95	1933	Rider	Rider 2	American Transformer	2
American Transformer AM20	1936	Gernsback	Gernsback 7	Radio	580
American Transformer Ameritran ;Power Unit	1933	Rider	Rider 1	American Transformer	1
American Transformer Approved Audio Circuits	1930	Gernsback	Gernsback 1	Amplifier	334A
American Transformer C10	1936	Rider	Rider 7	American Transformer	1
American Transformer C16	1936	Rider	Rider 7	Radio Wire	2
American Transformer C17	1936	Rider	Rider 7	American Transformer	2
American Transformer C21	1936	Rider	Rider 7	American Transformer	3
American Transformer C27	1936	Rider	Rider 7	American Transformer	3
American Transformer C33	1936	Rider	Rider 7	American Transformer	4
American Transformer Clarion ;TC1	1935	Gernsback	Gernsback 6	Radio	1050
American Transformer Clarion ;TC1	1936	File	American Transformer_TCA-TC1 ;Clarion_TC2 ;Clarion _Clarion ;TC1_Clarion ;TC2-1936.Gernsback.Radio	Radio	pdf
American Transformer Clarion ;TC1	1936	Gernsback	Gernsback 7	Radio	118
American Transformer Clarion ;TC1	1938	Rider	Rider 9	American Transformer	1
American Transformer Clarion ;TC2	1935	Gernsback	Gernsback 6	Radio	1050
American Transformer Clarion ;TC2	1936	File	American Transformer_TCA-TC1 ;Clarion_TC2 ;Clarion _Clarion ;TC1_Clarion ;TC2-1936.Gernsback.Radio	Radio	pdf
American Transformer Clarion ;TC2	1936	Gernsback	Gernsback 7	Radio	118
American Transformer Clarion ;TC2	1938	Rider	Rider 9	American Transformer	1
American Transformer DeLuxe Recording Amplifier	1931	Gernsback	Gernsback 2	Amplifier	143
American Transformer Hum Reduction Chart	1931	Gernsback	Gernsback 2	Misc	145
American Transformer P Unit	1933	Rider	Rider 1	American Transformer	1
American Transformer PA Unit ;Power Supply	1933	Rider	Rider 1	American Transformer	1
American Transformer PF 250	1930	Gernsback	Gernsback 1	Amplifier	334
American Transformer PF 281	1931	Gernsback	Gernsback 2	Amplifier	144
American Transformer PF 524A	1931	Gernsback	Gernsback 2	Amplifier	145
American Transformer Pickup Matching Circuit	1931	Gernsback	Gernsback 2	Misc	143
American Transformer Plate Supply Transformer Connection	1930	Gernsback	Gernsback 1	Misc	334B
American Transformer PP 250	1931	Gernsback	Gernsback 2	Amplifier	144
American Transformer TC1 ;Clarion	1935	Gernsback	Gernsback 6	Radio	1050
American Transformer TC1 ;Clarion	1936	File	American Transformer_TCA-TC1 ;Clarion_TC2 ;Clarion _Clarion ;TC1_Clarion ;TC2-1936.Gernsback.Radio	Radio	pdf
American Transformer TC1 ;Clarion	1936	Gernsback	Gernsback 7	Radio	118
American Transformer TC1 ;Clarion	1938	Rider	Rider 9	American Transformer	1
American Transformer TC10	1935	Gernsback	Gernsback 6	Radio	1052
American Transformer TC2 ;Clarion	1935	Gernsback	Gernsback 6	Radio	1050
American Transformer TC2 ;Clarion	1936	File	American Transformer_TCA-TC1 ;Clarion_TC2 ;Clarion _Clarion ;TC1_Clarion ;TC2-1936.Gernsback.Radio	Radio	pdf
American Transformer TC2 ;Clarion	1936	Gernsback	Gernsback 7	Radio	118
American Transformer TC2 ;Clarion	1938	Rider	Rider 9	American Transformer	1
American Transformer TC20	1934	Rider	Rider 5	American Transformer	7
American Transformer TC20	1935	Gernsback	Gernsback 6	Radio	1053
American Transformer TC21	1934	Rider	Rider 5	American Transformer	7
American Transformer TC21	1935	Gernsback	Gernsback 6	Radio	1053
American Transformer TC22	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC22	1938	Rider	Rider 9	American Transformer	3
American Transformer TC23	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC23	1938	Rider	Rider 9	American Transformer	3
American Transformer TC24	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC25	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC26	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC27	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC28	1935	Gernsback	Gernsback 6	Radio	1055
American Transformer TC28	1937	Rider	Rider 8	American Transformer	2
American Transformer TC29	1935	Gernsback	Gernsback 6	Radio	1055
American Transformer TC29	1937	Rider	Rider 8	American Transformer	2
American Transformer TC30	1934	Rider	Rider 5	American Transformer	6
American Transformer TC30	1936	Gernsback	Gernsback 7	Radio	579
American Transformer TC31	1935	Gernsback	Gernsback 6	Radio	1056
American Transformer TC31	1939	Rider	Rider 10	American Transformer	1
American Transformer TC35A	1935	Gernsback	Gernsback 6	Radio	1057
American Transformer TC35A	1939	Rider	Rider 10	American Transformer	2
American Transformer TC35LW	1935	Gernsback	Gernsback 6	Radio	1057
American Transformer TC35LW	1939	Rider	Rider 10	American Transformer	2
American Transformer TC36	1935	Gernsback	Gernsback 6	Radio	1058
American Transformer TC36	1939	Rider	Rider 10	American Transformer	4
American Transformer TC36A	1935	Gernsback	Gernsback 6	Radio	1059
American Transformer TC36A	1938	Rider	Rider 9	American Transformer	4
American Transformer TC36LW	1935	Gernsback	Gernsback 6	Radio	1059
American Transformer TC36LW	1938	Rider	Rider 9	American Transformer	4
American Transformer TC37	1935	Gernsback	Gernsback 6	Radio	1060
American Transformer TC37	1938	Rider	Rider 9	American Transformer	5
American Transformer TC37A	1935	Gernsback	Gernsback 6	Radio	1061
American Transformer TC37A	1939	Rider	Rider 10	American Transformer	5
American Transformer TC37LW	1935	Gernsback	Gernsback 6	Radio	1061
American Transformer TC37LW	1939	Rider	Rider 10	American Transformer	5
American Transformer TC38	1935	Gernsback	Gernsback 6	Radio	1062
American Transformer TC38	1938	Rider	Rider 9	American Transformer	6
American Transformer TC39	1935	Gernsback	Gernsback 6	Radio	1063
American Transformer TC39	1937	Rider	Rider 8	American Transformer	7
American Transformer TC39A	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC39A	1938	Rider	Rider 9	American Transformer	7
American Transformer TC39LW	1935	Gernsback	Gernsback 6	Radio	1054
American Transformer TC39LW	1938	Rider	Rider 9	American Transformer	7
American Transformer TC40	1934	Rider	Rider 5	American Transformer	9
American Transformer TC42	1935	Gernsback	Gernsback 6	Radio	1064
American Transformer TC42	1937	Rider	Rider 8	American Transformer	4
American Transformer TC43	1935	Gernsback	Gernsback 6	Radio	1064
American Transformer TC43	1937	Rider	Rider 8	American Transformer	4
American Transformer TC44	1935	Gernsback	Gernsback 6	Radio	1064
American Transformer TC44	1937	Rider	Rider 8	American Transformer	4
American Transformer TC50	1934	Rider	Rider 5	American Transformer	10
American Transformer TC50	1936	Gernsback	Gernsback 7	Radio	580
American Transformer TC52	1934	Rider	Rider 5	American Transformer	9
American Transformer TC52A	1938	Rider	Rider 9	American Transformer	8
American Transformer TC53	1936	Gernsback	Gernsback 7	Radio	579
American Transformer TC53A	1935	Gernsback	Gernsback 6	Radio	1065
American Transformer TC6	1935	Gernsback	Gernsback 6	Radio	1051
American Transformer TC6	1937	Rider	Rider 8	American Transformer	1 3
American Transformer TC60	1934	Rider	Rider 5	American Transformer	11
American Transformer TC60	1935	Gernsback	Gernsback 6	Radio	1066
American Transformer TC65	1935	Gernsback	Gernsback 6	Radio	1067
American Transformer TC65	1937	Rider	Rider 8	American Transformer	4 6
American Transformer TC66	1935	Gernsback	Gernsback 6	Radio	1068
American Transformer TC66	1939	Rider	Rider 10	American Transformer	6
American Transformer TC75	1935	Gernsback	Gernsback 6	Radio	1069
American Transformer TC75	1939	Rider	Rider 10	American Transformer	6
American Transformer TC76	1935	Gernsback	Gernsback 6	Radio	1069
American Transformer TC76	1939	Rider	Rider 10	American Transformer	6

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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, it may take a little longer! Here in the UK it is 17:59. 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.

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. How to repair your radio. More explanation here. Some sources searched :-

Book Set	KEY	Years
J.F. Riders Perpetual	Rider	1920-54
Trader Service sheets	Trader	1933-81
Beitmans Radio Diags	Beitman	1926-69
Beitmans TV Diagrams	BeitmanTV	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	=>2022

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".

(247201 schematics^* by 1828 different manufacturers indexed!)
Updated 18th. Dec 2023

Search Time = 211 results in 21.2 mS. Log

ABC	AC Dayton	Accurate	Ace
ACEC	AceTone	Ache	Acme
Acorn	Acoustic	Acoustical	Acra Test
Acra Tone	Ada	Adaptol	Addison
Admiral ;Australia	Adret	Advance Electric	Advance
Advent	AEA	AEG	AEI
AEL	Aeonic	Aeradio	Aerialite
Aeriola	Aero Metal	Aero Motive	Aero Products
Aerodyne	Aetna	AFB	Affiliated
AGE	Agilent	AH Grebe	Ahemo
Aims	Air Castle	Air Chief	Air King
Air Knight	Air Ministry	Air Radio	Airline
Airmec	Airo	Airtone	Airzone
Aiwa	Ajax	AJS	Akai
AKG	Akkord	Akrad	Alamo
Alan	Alba	Alchemist	Alden
Alesis	Alfa	Algene	Allander
Allesandro	Allied Engineering Institute	Allied	Allocchio Bacchini
Alpha	Alpinist	Altar	Altec Lansing
Alto	Amalgamated	Amato	Ambassador
Amber	AMC	Amcron	American Bosch
American Data	American Foundation For the Blind	American MeriLei	American Motors
American Transformer	American TV	American	Ameritron
Ampeg	Ampex	Amphenol	Amplion
Ampro	Amrad	Amstrad	ANC
Andrea	Angstrem	ANK	Ansley
Antique Sound	Antone	Anubics	Aola Schlaak
Apex	Apogee	Apparatus	Appel Henderson
Appleton	Applied	Approved	Arborphone
Arcadia	Arcam	Archer	Ardent
Arel	Aren	Arena	Argos
Argosy	Argus	Aria	Ariane
Ariel	Arion	Aristocrat	Aristona
Aristophone	Arkay	Armstrong	ARP
ART	Arthur Ansley	Artone	Arvin
Arzamas	Ashton	Askar	Astars
Aster	Astor	Astrad	Astron
Atari	Atchison	Athena	Atlantic
Atlas	Atwater Kent	Audar	Audinac
Audio Design	Audio Note	Audio Research	Audiola
Audiolab	Audioline	Auricon	Austin
Austrovox	Autocrat	Automatic	Automovil
Autophon	Autoradio	AutoSuper	Autovox
Avco	Avery Fisher	Aviola	AVO
AWA	Award Session	Award	Axess
Azdam	Aztec	Bad Stone	Badcat
Baird	Balcombe	Baldwin	Balkeit
Balkite	Ballantine	BandBox	Bandmaster
Bang and Olufsen	Banner	Barcus	Barker
BarRadio	BARTG	BASF	BassMan
Bauer	BBC	BBE	Beaning
Becker	Beede	Beethoven	Behringer
Beitman	Beko	Belco	Belcom
Bell and Howell	Bell	Belle	Belmont
Belson	Beltek	Bendix	Bengal
Benkson	Benson	Beogram	Beolit
Berdsk	BEREC	Berlin	Bernard
Bernburg	Berning Seigfried	Bertoncini	Bespeco
Betterset	BF Goodrich	BGW	Biennophone
Bigg	Binatone	Binson	BK
Black Heart	Blackhawk	Blackstar	Blaupunkt
Blocs Accord	Blohm	Blonder	Blue Spot
Bobinas	Bogen	Bogner	Bolt
Bond	Boogie	Bosch	Bose
Boss	Brandes	Brandt	Braun
Brayhead	BRC	Bremer	Bremi
Brentwood	Breting	Brewster	Briconic
Brimar	Brionvega	Britamer	Broadcaster
Bronswick	Brook	Brown Boverie	Brown
Brownie	Browning	BRT	BRTR
Bruno	Brunswick	Brush	BSR
BTE	BTH	BTS	Buchla
Buckingham	Bud	Bugera	Buick
Bulova	Burbdept	Burgess	Burgoyne
Burman	Burndept	Burns	Burrell
Bush	BushLane	BushManual	Butler
BYE	Bylock	Cable Nelson	CAC
Cadillac	Calrad	Calsel	Calvert
Cameo	Campanela	Camtec	Canadian Radio
Canadian Westinghouse	Capehart	Capitol	Caravan
Carisch	Carlin	Carlsbro	Carousel
Carron	Carter	Carver	Carvin
Case	Castilla	Cavelcade	CBS
Celestion	Central Equipment	Century	CER
CGE	Chakophone	Champ	Champion
Chancellor	Channel Master	Channel	Cheliabinsk
Chevrolet	Chieftan	Chrysler	Cihan
Cisco	Cities Service Oil	Citronic	Civilian
Clago	Clarion	Classe ;Audio	Clearsonic
Cleartone	Climax	Clinton	Clipper
Clydon	CMC	Coast to Coast	Codar
Col R Tel	Collaro	Collins	Collorado
Colonial	Color sound	Colortel	Columbia
Comix	Commonwealth	Concord	Conrad Johnson
Consolidated	Consomello	Contessa	Continental
Convair	CoOp	Corona	Coronado
Coronet	Corvair	Corvette	Cosmos
Cossor	Couch	Courier	Craftsmen
Crate	CRC	Crescent	Crest Audio
Cromwell	Crosley	Crown	Crumar
Crystal	CTR	Currys	Cyldon
Cyrus	Czeija	DAF	Dan Armstrong
Danelectro	Dano	Dansette	Dansk
DARB	Dartington	Data	Daven
David Bogen	David Grimes	Daxon	Day Fan
DayRad	Daystrom	Dayton	DB
DBX	De Forest	Dean Markley	Decanno
Decca	Deccasound	Defiant	Delco
Delmonico	Delta	Deltalab	Denco
Denon	Desoto	Detrola	DeVar
DeWald	Dickerson	Dictograph	Diezel
Digitech	Diora	DKE	Dnepropetrovsk
Dod	Dodge	Dominion	Don Lee
Dorchester	Doric	Douglas	Drake
Drummer	DTW	Dual Engineering	Dual
Ducati	Ducretet	Dukane	Dulci
DuMont	Dumortier	Dunlop	Dwektronix
Dynaco	Dynacord	Dynakit	Dynaport
Dynatron	Eagle	EAP	EAR
Earl	Earth	Eastern	EAW
ECA	Echophone	Echoplex	EchoTape
Eckenroth	Ecko	Eckstein	Eddystone
Eden	Edison Bell	Edison	Ediswan
EDP	Edwards	Effedibi	Egnater
EH Research	EH Scott	EHRA	Eico
Ekco	Ekosonic	Ekotape	EL Rey
Elbeg	Elbia	Elcophon	Electone
Electrad	Electric Autolite	Electric Automotive	Electric Specialties
Electrical Research	Electro Acoustic	Electro Betrrieb	Electro Harmonix
Electro Matic	Electro Technical	ElectroHome	Electromuse
Electronic Corp	Electronic Dream Plant	Electronic Labs	Electronic Music Labs
Electrophone	Electroplex	ElectroVoice	Eletrofone
Elgar	Elizabethan	Elk	Elka
Elmug	Elpico	Eltra	Elxon
EMC	Emerson ;Argentina	EMI	Emisonic
EML	EMM	Emor	Empire Designing
Empire Electrical	EMS	Emtron	EMU
Emud	EMW	Eneka	Engl
English Electric	Envoy	Epiphone	ERLA
Ermsa	ERT	Erwa	ES
Espey	Esquire	Estey	Estyma
Etra	Etronic	Eumig	Europhon
Europhone	Evans	Everready	Excelsior
Exelrad	Facit	Factotum	FADA
Fairbanks	Fairchild	Fairlight	Falcon
Falks	Fansteel	Fapesa	Farfisa
Farnell	Farnsworth	Farrand	Fasma
Federal Manufacturing	Federal Radio	Federal	Federated
Felgate	Fender	Ferguson	Ferrando
Ferranti ;Similar	Ferrar	Ferris	Ferrograph
Fiat	Fidelity	Finlux	Fiolent
Firestone	First National Radio	Fisher	Fisk
Fitton	FJ Fitzgerald	Fleetwood	Florac
Fluke	Flush Wall	FM Specialities	FNR
Fonotalk	Ford Philco	Ford	Fordson
Fourier	Foxx	Framus	Franklin
Freed	French Jesse	Freshman	Fret and Foot
Frost Minton	Fulton	Funkstrahl	Furguson
Furgusonic	Furman	Futterman	Futurama
Galaxy	Gallien Krueger	Galvin	Gamble Skogmo
Garnet	Garod	Garrard	Gates
GBC	GCHQ	GE ;Argentina	GEC
Gecophone	Geloso	Gem	Gemeinschafts
Genalex	General Dynamics	General Fire	General Household
General Implement	General Industries	General Instrument	General Radio
General TV	Generic	GenRad	Geodyn
Gernsback	Gerufon	Geta	Giannina
Gibson	Gigrac	Gilbert	Gilfillan
Gladstone	Globe	GM	Goblin
Goerz Metrawatt	Golden Tube	Goldentone	Goldpfiel
Goldring	Goldstar	Gonset	Goodmans
GoodYear	Gordon Elf	Gotham	Gould
Graetz	Graham Paige	Graham Philco	Grainger
Gramaphone	Gramdeck	Grammont	Grampian
Granada	Granco	Grandin	Grant
Grantline	Grasman	Grasmann	Graves
Gray Danielson	Gray	Graybar	Grebe
Gregory	Gretsch	Grigsby	Grommes
GrooveTube	Gross	Grozny	Grundig
GT	Guild	Guitar Research	Gulbransen
H Clarke	HAC	Hacker	Haco
Hagenuk	Hagstrom	Halcyon	Hale
Hallicrafters	Halson	Hameg	Hamilton
Hammarlund	Hammond	Hanimex	Hansen
Harman Kardon	Harmony	Harold Shevers	Harris
Hartke	Harty Young	Harvard	Harvey Wells
Hastings	Hatry	HEA	Healing
Hear All Continents	Heath	Heathkit	Heli
Henry	Henrys Radio	Herbert Horn	Hermes
Hetro	HF Labs	HH ;Electronics	HH Scott
Hi Lo	Hickok	Hitachi	Hiwatt
HK	HMGCC	HMV ;Australia	HMV New Zealand
Hoffman	Hohner	Honda	Hoodwin
Horny	Hornyphon	Hotpoint	Howard
HP	Hudson Motors	Hudson Ross	Hudson
Hughes Kettner	Hupmobile	Huth	Ibanez
Iberia	ICA	Icom	Ideal
Imefon	Impact	Imperial	IncarRadio
Indesit	Industria Radiotecnica	Industrial Electronic	Industrial Instruments
Inelro	Ingelen	Insuline	Intensofunk
Interceptor	InterM	Intermark	International Detrola
International industries	International	InterOcean	Interstate
Invicta	Invictus	Irradio	Iskra
ITT	J G Graves	Jackson	Jadis
Jahnke	James	Jason	JBL
JD	Jefferson Travis	Jen	Jenkins
Jennings	Jerrold	Jerry Donahue	Jesse
Jet City	Jewel	Jimi Hendrix	JMF
John Meck	John Radio	Johnson	Jolida
Jordan	Jotha	JP Seeburg	Juergen Simon
Jugo	Jungmann	Jupiter	JVC
JW Davis	Kaar Engineering	Kadette	Kaiser
Kalamazoo	Kamensk	Kampo	Kappler
Kapsch	Karadio	Kawai	Kay
KB	Keighley	Keller Fuller	Kellog
Ken Brown	Kennedy	Kenpro	Kent
Kenwood	Kernwood	Ketay	Kiev
King	Kings	Kingston	Kishtim
Kittyhawk	Klangfilm	Klemt	KLH
Klinger	Knight	KnightKit	KO
Koch	Kodel	Kolleda	Konka
Korg	Korting	Kosmovox	Koyo
Krakauer	Kramolin	Krefft	Kriesler
Krishke	Krohler	Kudelski	Kurzweil
Kustom	KW communications	Kylectron	L and L
L Tatro	Laboga	Lafayette	Lamagna
Lamco	Landry	Laney	Lang
Lange	Langevin	Larinko	Laselle
Laurehk	Leader	Leak	Leander
Lear	Lectrolab	Leipzig	Lembeck
Leningrad	Lesam	Lesley	Leslie
Leutz	Levell	Lewol	Lewt
Lexicon	Lifco	Lincoln	Line 6
Linear	Lissen	Loewe	Loftin
Logan	Lohja	London City	London Electric
Long	Lord	Lorenz	Lotus
Loud ;Technologies	Lowrey	LTP	Lumophon
Luxor	Lyric	Lytle and Canon	Mac
Mackay	Mackie	Maco	Macy
Madison Moore	Madrigal	Maesto	Maestro
Magatone	Magic Tone	Magnadyne	Magnatone
Magnavox	Maguire	Maihak	Mains Radio Gramaphones
Maintainence	Majestic	Major	Mallory
Mantel	Mantola	Marantz	Marc
Marconi ;Canada	Marconiphone	Marcucci	Marelli
Margolin	Mark Simpson	Mark	MarkBass
Marlboro	Marmax	Marshall	Marti
Martin	Masbel	Masco	Mashpriborintorg
Master Care	Master Radio	Masteradio	Masterpiece
Matchless	Matsushita	Maxon	Mazda
MBLE	McCarthy	McIntosh	McMichael
McMillan	McMurdo	Meazzi	Mebgeratebau
Meck	Mectron	Mediator	Megard
Megger	Meissner	Melburn	Melorad
Melos	Mende	Mercantile	Mercury
Mesa	Meteor	Metrodyne	Metropolitan Vickers
Metz	MEW	MFA	Micro Electronic
Micro Radio	Micronta	Midland	Midwest
Military	Mills	Milwaukee	Minerva
Minsk	Miraco	Mirage	Mission Bell
Mission	Mitchell	Mitsubishi	Mivar
Mohawk	Molded	Monarch	Monelectric
Monitor	Monogram	Monsanto	Montgomery Ward
Moog	Mopar	Morley	Morphy Richards
Moscow Deaf Aid	Moscow	Moskovsky	Mosrite
Motek	Moto Meter	Moto	Motorola
Motovia	Motovox	Moulinex	MRTZ
Mullard ;Australia	Multitone	Multivox	Munston
Muntz	Murphy ;New Zealand	Musaphonic	Musette
Music Man	Musicaid	Musicaire	Musical Fidelity
Musique	Muzak	MXR	NAD
Naiwa	Nakamichi	Nanaola	Nash
Nassau	Nathanial	National Acoustical	National Carbon
National Cooperative	National Dobro	National Panasonic	National Radio Company
National Radio Institute	National Radio Products	National Tape Recorder	National Transformer
National Union	National	Nato	Navico
Navigator	Navships	NEC	Network
Neumann	Newcombe	Newmatic	NH Radio
Niemann	Nintendo	Nissl	Nivico
Nizhegorodsky	Nobels	Noblex Berna	Noblex Carina
Noblex Fabulino	Noblex	Noblitt Sparks	Nora
Norco	Nord Mende	Norden Hauck	Norelco
Norlin	Norma	Northcourt	NorthEastern Engineering
Northern Electric	Northern Radio	Northland	Nova
Novak	Novator	NRI	NSF
NSM	Oahu	Oak	Oberheim
Oceanic	Octave	OK	Okean
Oldsmobile	Oldsmodbile	Olympic	Omega
Onkyo	Opel	Operadio	Opta
Orange	Orion	ORR	Orsha
Orthon	Osaka	Osram	Owin
Ozarka	Pacent	Pacific Radio	Pacific Research
Pacific	Packard Bell	Packard Motor Car	Packard Philco
Packard	Pageant	Paillard	Palace
Palec	Palomar	PAM	Pamphonic
Panasonic	Panatrope	Panoramic	Paramount Radio
Park	Parker Mccrory	Parmak	Paros
Parsek	Pathe	Paton	Patterson
Pearce Simpson	Pearce	Pearl	Peavey
Pedersen	Peerless	Pellegrinetti	Pennine
Pentron	Perdio	Perfectone	Peter Pan
Peto Scott	Pfanstiehl	Phicco	Phico
Philbrick	Philco ;Italy	Philetta	Philharmonic
Philips ;America	Phillips Petroleum	Philmore	Phonic
Phonola	Pierce Airo	Pierce Arrow	Pierce
Pierson Delane	Pierson	Pifco	Pig Nose
Pilgrim	Pilot	Pioneer	Pizon
Playcraft	Playmate	Plaze Music	Plessey
Plustron	Plustronics	Plymouth Philco	Plymouth
Poliot	Polytone	Polyvox	Pontiac
Popular Mechanics	Port0Matic	Portadyne	Porto Baradio
Porto Products	Porto Radio	Porto Server	Portodyne
Portogram	Powersoft	Precedent	Precision Radio
Precision	Premier	Priess	Proctor Silex
Promenette	Pulse Techniques	Pure Oil	Puritan
Purotone	Purple Cow	Puxing	Pye ;Australia
Pyeway	QSC	QTX	Quad
Qualiton	QuanTech	Quartz Lock	Racal
Radford	Radialva	Radiart	Radiette
Radio Acoustic Products	Radio and Television	Radio Chassis	Radio Circular
Radio Development Research	Radio Displays	Radio Electric	Radio Engineering
Radio Gram	Radio Kits	Radio Marine	Radio Product
Radio Products	Radio Recepter	Radio Receptor	Radio Rentals
Radio Service	Radio Shack	Radio Technic	Radio Trading
Radio Union	Radio Vision	Radio Wire	Radiobar
RadioCorp	Radioette	RadioExchange	Radiofon
Radiola	RadiolaGram	Radiolette	Radiomarelli
Radiometer	RadioMobile	Radione	Radionette
Radionic	Radiopribor	Radiotehnika	Radiotron
Radiotrope	Radolek	RAF	Rainbow
Randall	Rank	Ranser	RAP
RAS	Rat	Rauland	Ray
Raymond	Raytheon	RBM	RCA
RCASN	RCF	RCR	RCS
RE Lacault	ReadRite	Realistic	Recording Devices
RedBear	Rediffusion	Redifon	Rees Mace
Regal	Regency	Regent	Regentone
Reico	Rema	Remler	Renard
Renault	Rent a Set	REO	Repanco
Republic	RER	Retra	Revelation
Revere	Revox	Rexel	RFT
RFW	RGD	RGH	Rheem
Rhodes	RI	Rick Campbell	Rickenbacker
RickTone	Rider	Rigas	Rigonda
Rivera	Riweco	RK Radio	RM Electric
RME	RMSE	Robert Lawrence	Roberts ;USA
Robertson	Robuck	Robuk	Rocke International
Rockford	Rockola	Rodgers	Rogers Majestic
Rogers	Rohde Schwarz	Rola	Roland
Rolax	Rolland	Romac	Ross
RR	RRR	RSC	RSS
RT	RTV Cross Reference	Russell	Ruwel
SABA	Sachsenwerk	SAE	Salara
Salora	Sam Ash	Sampson	Sams
Samson	Samsung	Sangamo	Sangean
Sango	Sano	Sanshin	Sansui
Sanyo	Saradul	Sargent EM	Sargent Rayment
Savage	Savil Radio	SBE	SBR
Scandyna	Schaleco	Schaller	Schaub
Schlaak	Schlumberger	Scott Transformer	Scott
SDC	Sea pal Radio	Searle Aero	Sears Roebuck
Seat	Seco	Seiberling	Seibt
Seimens	Selena	Selmer	Semcor
Sencore	Sentinel	Sequential	Service
Session Master	Setchell Carlson	Seymour Duncan	Shamrock Radio
Sharp	Sheaffer	Shelley	Sheridan
Sherwood	Sicart	Siemens	Siera
Signal Battery Company	Signal Electronics	Silco	Silver King
Silver Marshall	Silver	Silvertone	Simmons
Simms Watts	Simplex	Simplon	Simpson
Sinclair	Singer	Single	Sintar
Skantic	Skoda	Sky Rover	Slagle
Sleeper	SM	Smiths	SNR
Sobell	Sobol	Socora	SOE
Sokol	Solar	Solartron	SolaSound
Soldano	Solectric	Solton	Sommerkamp
Sona	Sonar	Sonatel	Sonocraft
Sonolor	Sonora	Sony ;Australia	Sound City
Sound Mirror	Sound View Marine	Sound	Soundcraft
Soundesign	Sovtek	Sparks Withington	Sparton
Spatz	Spencer West	Spencer	Spezial
Spica	Spidola	Spiegel	Spika
Splawn	Splitdorf	Sprague	SRA
SRT	Stairs Winters	Stancor	Standard Radio Telefon
Standard	Standel	Stanley	Star Raider
Star	Starck	Starg	Stark
Startford	Starton	Stassfurt	Staudigl
STC ;Australia	Steelman	Steinite	Stella ;New Zealand
Stenode	Stereo Full	Stereo	StereoSound
Sterling	Stern	Stewart Radio	Stewart Turner
Stewart Warner	Stinger	Story Clark	Strad
Stratfield	Strauss	Strawberry Blonde	Strobotuner
Stromberg Carlson	Studebaker	Studiomaster	Stuzzi
Sudfunk	Sunbeam	Sundown	Sunn
Superior	Superstar	Supertone	Suprem
Supreme	Supro	Svenska Radio Aktiebolaget	Svetlovodsk
Swan	Swirlux	SWR	Sylvania
Symphony	Taffet	Tak	Talk-a-Phone
Tandberg	Tandy	Tannoy	Tapco
Tascam	Tasma	Tatung	Taylor
TCA	TCE	TEAC	Tech
Technics	Teclemit	Tectronix	Tefag
Tefi	Teisco	Tekade	Tekelec
Tektronix	Tele King	Tele Tone	Telechron
Telecoin	Teledyne	Telefunken	Telephone
Telequipment	Teleton	Teletron	Televian
TelevisionTraining Institute	Telsen	Temple	TempleTone
Tempovox	Tento	Terta	Tesla
Texan	THD	Therm	Thomson
ThomsonHouston	Thordarson	Thorn	Throens
TI	Tiffany Tone	TimeElectronics	Titan
TMC	TMK	Todd	Tokyo HY Labs
TomThumb	Tonomac	Topeco	Tophat
Torn	Tornister	Torotor	Torres
Toshiba	ToshibaManual	Trace Elliot	Trader
Tradio	Trainwreck	Trans Arena	Transatlantic
Transformer Corps	Transitone	Transmission Products	Transvision
Traveller	Travler	Traynor	Triangle
Tricity	Trimax	Trio	Triplet
Trix	TRK	Tropic Aire	Troubador
Troy	True Value	Truetone	Truphonic
Truvoice	TruVox	TUAC	Turner
Tyrman Electric	Ucoa	Uher	UKW
Ultra	Ultradyne	Ultramar	Unda
Unic	Unicord	Uniden	United Air Cleaners
United Motor Service	United Motors	United Recording	United Reproducers
United Reproduction	United	Unitra	Universal Battery
Universal	Universum	Univox	UnKnown
US Electric	US Radio	US Television	USAF
Utah	UTC	V Lectrical	Valco
Valiant	Valradio	Van Der Molen	Vandyke
Varley	VEB	VEF	Vega
Velodyne	Vickers	Victor	Victoreen
Video Corporation	Videodyne	Vidor	View
Viewtone	Viking	Vision Research Labs	VM
Vocoline	Voice of Music	Volks	Volkswagen
Volmar	Voronezh	Vox	Voxson
VSE	VW	Waco	WaldSchidt
Walgreen	Walker George W	Walter	Waltham Standard
Waltham	WanYong	Ward	Ware
Warner	Warwick	Waterman	Watkins
Watt	Watterson	WaveTek	Wayfarer
WayneKerr	WB	Webcor	Webster
Weco	Wega	Wells Gardner	WEM
Westbury	Western Air Patrol	Western Auto	Western Electric
Western Royal	Western	Westinghouse	Westminster
Weston	Westone	Wextark	Weymouth
Weyrad	Wharfedale	White Ibbotson	White
Whiteley	Whitley	Wholesale	Wiking
Wilco	Wilcox Gay	Willard	William J Murdock
Willys	Winco	Windsor	Wings
Wireless Set	WireRecorder	Woolaroc	Workrite
World Radio	WQXR	WRL	WT Grant
WT Knott	Wundercart	Wurlitzer	Xtal
Yaesu	Yamaha	York	Yorkville
Zaney	Zanusi	Zaporizhzhya	Zenith
Zenitron	Zentro	Zephyr	Zetavox

American Transformer Schematics, Service manual or circuit diagram £1.80 (~ $2.20 or €2.10)

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211 American Transformer models listed

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(247201 schematics* by 1828 different manufacturers indexed!)Updated 18th. Dec 2023

American Transformer Schematics, Service
manual or circuit diagram £1.80 (~ $2.20 or €2.10)

(247201 schematics^* by 1828 different manufacturers indexed!)
Updated 18th. Dec 2023