Free Circuit Diagrams
Buy something from Martin's Goodies and choose one of the following circuit diagrams to be e-mailled to you

(Martin is looking for circuit diagrams of the German WW2 submarine radar warning receivers, such as Naxos, Samos, Metox R600A, Fub1B5 Fanö, Korfu etc. )

Archer 50MHz walkie talkie circuit diagram
Heathkit 2-meter transceiver, "Twoer" model HW-30 circuit diagram

Cossor 561 Receiver circuit diagram
Ferranti ZN414 AM Radio Receiver circuit diagram
Ferranti ZN415 AM Radio Receiver circuit diagram
Gecophone No. 2 Crystal circuit diagram
Sinclair Micro-6 circuit diagram

U.K.
1147B circuit diagram
Army No. 88 set circuit diagram
Army R107 circuit diagram
Army wireless 18 TRX circuit diagram, no component values
Army wireless sets No. 19, schematic of "A" set, no component values
B2 circuit diagram
CR100/B28 circuit diagram, no component values
CR150/2 circuit diagram
DST100 Mk 3 circuit diagram
N.Z. ZC1 Mk 2 circuit diagram
R3118 circuit diagram
T1154 circuit diagram
T1333 circuit diagram
Telesonic 4 valve battery receiver YA 4915 circuit diagram
TR1196 circuit diagram, no component values
Transmitter T.R1143 (Type 17) circuit diagram
Type 21 Receiver circuit diagram,
Type A Mark 3 circuit diagram

U.S.A.
BC 348 circuit diagram
BC-453 circuit diagram
BC610 Exciter circuit diagram, no component values
Collins TCS circuit diagram, no component values
Command T19/ARC-5 circuit diagram
Hallicrafters S27-D circuit diagram, no component values
Hallicrafters Sky Buddy 5-T circuit diagram
Hallicrafters Sky Buddy S-19R circuit diagram
Hammarlund Super Pro circuit diagram
National HRO circuit diagram
RCA AR 77 circuit diagram
RCA AR88D circuit diagram
RCA CR-91 circuit diagram
TU5B circuit diagram

Germany
Lo 6 K 39 a circuit diagram, no component values
Torn E b circuit diagram, no component values

U.K.
Bush D/A.C.1 circuit diagram, no component values
Eddystone 880 circuit diagram
Ever Ready "Sky Captain" circuit diagram
HAC Triple T Transistor RX circuit diagram
Marconi Atalanta 1017 circuit diagram
Marconiphone 262 circuit diagram
Mullard MAS-4 circuit diagram
Pye T9 Superhet circuit diagram
Receiver A.D.P.6 and T.A.D.6 circuit diagram
Sinclair Micro FM circuit diagram
WS.301 circuit diagram

U.S.A.
Collins 75 A-2 circuit diagram
Drake R8 circuit diagram
Heathkit RA-1 circuit diagram, no component values
Heathkit SW-717 circuit diagram
Philco 269 circuit diagram

Japan
AM FM-Air Citizens Band circuit diagram
FRG-7 circuit diagram
IC-751 circuit diagram
Kent TR605 circuit diagram, no component values
RF 155F circuit diagram
Sony ICF-2001 circuit diagram

Russia
Astrad (Vef) 17 circuit diagram
Selena circuit diagram

285 power unit circuit diagram
Indicator unit 62 circuit diagram
Indicator unit 62A circuit diagram
R1355 IF amplifier circuit diagram
R1355 power unit circuit diagram
RF 24 circuit diagram
RF 25 circuit diagram
RF 26 circuit diagram
RF 27 circuit diagram
Amplifier A1134 circuit diagram
Bendix transmitter TA 12B circuit diagram
Intercom amplifier 3611 circuit diagram
Radio copass MN-26C circuit diagram
Receiver R1082 circuit diagram
Receiver R1084 circuit diagram
Receiver RA 10DA circuit diagram
T1087, no component values circuit diagram
T1154, no component values circuit diagram
TR9H Receiver circuit diagram
TR9H transmitter circuit diagram
Transmitter T1083 circuit diagram
Wavemeter W1081 circuit diagram, no component values
Wavemeter W1117 circuit diagram, no component values
Wavemeter W69 circuit diagram, no component values
Receiver R1155, R1155A, R1155B circuit diagram
Receiver R1155 simplified communications circuit diagram

Armstrong Short-wave (superhet) circuit 1925, no component values
Valve Transmitting Circuit Complete 1925 no component values

Radio Communication Co. Synchronous Spark Set, Type T18 circuit diagram, no component values
Siemens 1/4 kW Quench Gap Transmitter circuit diagram, no component values
Marconi 1.5 kW Marine Valve Transmitter, Type MC1 circuit diagram, no component values
Marconi 1.5 kW Marine Valve Transmitter, Type MC3, 4 circuit diagrams, no component values
Marconi 2 kW C.W./I.C.W. Transmitter type MC6 circuit diagram, no component values
Marconi 1/2 kW I.C.W. Transmitter type MC8A circuit diagram, no component values
Marconi 1.5 kW I.C.W. Transmitter type MC13 circuit diagram, no component values
Radio Communication Co 1/2 kW C.W./I.C.W./Spark Transmitter type T29 circuit diagram, no component values
Radio Communication Co 1.5 kW C.W./I.C.W./Spark Transmitter type T22 circuit diagram, no component values
Siemens I.C.W. Transmitter type SB92 circuit diagram, no component values
Siemens I.C.W. Transmitter type SB92AB circuit diagram, no component values
Siemens Longwave C.W. Transmitter type SB31 circuit diagram, no component values
Marconi Marine Wavemeters type1 and type 2 circuit diagrams, no component values
Marconi Marine Receiver type 226 circuit diagram, no component values
Marconi Note Filter type 282 circuit diagram, no component values
Marconi Marine Receiver No. 5, simplfied circuit diagram, no component values
Marconi Marine Receiver Type 352, circuit diagram, no component values
Marconi Marine Receiver Type 352a, circuit diagram, no component values
(Marconi Marine Receiver) High Frequency Amplifier Type 374, circuit diagram, no component values
(Marconi Marine) Receiver Type 394, circuit diagram, no component values
Marconi Marine Tuner Type 127, circuit diagram, no component values
Radio Communication Co Receiver R14D circuit diagram, no component values
Radio Communication Co Receiver R25 circuit diagram, no component values
(Radio Communication Co) Receiver R16 circuit diagram, no component values
Siemens Receiver Type SB83 circuit diagram, no component values
Siemens Tuner Type SB53 and detector Amplifier SB73 circuit diagram, no component values
(Marconi Marine) Short Wave Transmitter Type 376, circuit diagram, no component values
(Marconi Marine) 1/2 kW Short Wave Transmitter Type 398, circuit diagram, no component values
(Marconi Marine) Shortwave Receiver 372, circuit diagram, no component values
(Marconi Marine) Shortwave Receiver 521, circuit diagram, no component values
Marconi Aperiodic Aerial Direction Finder type 11A circuit diagram, no component values
Marconi Marine Direction Finder type 11F circuit diagram, no component values
Marconi Marine D.F. type 11G circuit diagram, no component values
Marconi Marine D.F. Amplifier type 359 circuit diagram, no component values
Marconi Marine Direction Finder type DFM3 circuit diagram, no component values
(Marconi Marine) Direction Finder type 379 circuit diagram, no component values
Siemens (direction finding) Receiver Type SB139 circuit diagram, no component values
(Marconi Marine) Transmitter type 506 circuit diagram, no component values
(Marconi Marine) Transmitter type 503 circuit diagram, no component values
(Marconi Marine) 60 W Transmitter type 517A circuit diagram, no component values
Radio Communication Co Lifeboat Set Type PS17 circuit diagram, no component values
Siemens Lifeboat Transmitter and Receiver circuit diagram, no component values

Marconi Multiple Tuner circuit diagram, no component values <=1913
Marconi Valve Tuner circuit diagram, no component values <=1913
Marconi transmitting Gear 1/2kW Set circuit diagram, no component values <=1913

Admiralty Wavemeter G56 circuit diagram, no component values