Instruments & Gauges
Accurate Recording (ARIC)
Askania-Werke
Barnet Instruments
British Wright
Brown Brothers (Instruments)
Cambridge Scientific Instruments
Cowey Engineering
Elliott Brothers (Automation)
Ferranti
Hasler Telegraph Works
Henry Hughes
Kelvin Bottomley & Baird (KBB)
Kollsman
Korect Depth Gauge (KDG)
Mechanism (Ltd)
Negretti & Zambra
Nivex Gauge
RACAL Instruments
Sangamo Weston
Simms Motor Units
Smiths Instruments (Also Avionics)
Short & Mason
Simmonds Aerocessories
Sperry
Taylors (George, Brassfounders)
Reid & Sigrist
Avionics Wireless, Radio.
AEG-Telefunken
Aeronautical Radio Services Ltd
Aircraft Radio Corporation (ARC)
Air Transport (Charter) (C.I.) Ltd
Allen Aircraft Radio Corporation
Amalgamated Wireless (Australia) Ltd. AWA.
Amphenol (Great Britain) Ltd
Associated Electrical Industries Ltd. (A.E.I.)
British Communications Corporation Ltd (BCC)
Bendix International (Search Bendix Also)
Burndept Ltd
Cable & Wireless Ltd
Cathodeon Crystals Ltd. All
Cessna Avionics (Sample)
Chelton (Electrostatics) Ltd
Collins
Cossor (All)
Decca (All) - (Decca Navigator / Radar)
Ekco (All)
Elliott Brothers (All from 1950)
E.R.S.Ltd. (Accessories)
Ferranti Ltd
Gamages (A.W.Gamage)
Gambrells, Rowse & Snoaden Ltd
General Aircraft (Scroll For Hermes Radio)
General Electric Co. (Osram Valves)
General Electric (Comms)
DirectorySearchA - ZNews & BlogTee EmmContact
King Radio Corporation (See King Aircraft Corporation)
Lancefield Aircraft Components
Land, Air, Sea Instrument Co (LASCO)
Litton Industries
Marconi
McDonnell Douglas Radar
McMichael Radio Ltd
Metropolitan-Vickers. Metrovik. (Sample)
Motorola (World Radio)
Mullard Ltd
Murphy Radio Ltd
National Radio Service. The
Newmark Ltd. Louis
Philco Radio & Television Corp Ltd
Philips Electrical Ltd (All)
Plessey Company Ltd. The
Pye Ltd (All)
Racal (All)
Radio Transmission Equipment Ltd (R.T.E.)
Redifon Ltd. (All)
Rotax Ltd (All)
Selenia Industrie Elettroniche
Shorrock Developments Ltd
Siemens (1938 Autopilot Sample)
Smiths (Flight Systems)
Smith(s) Automatic Pilot (1938 Samples)
Solartron Electronic Group Ltd. The. (All)
Sperry (All)
Standard Telephones and Cables Ltd
(Standard Radio)
Ultra Electronics Ltd

Vicom & Co Ltd
Whiteley Electrical Radio Ltd

Gilfillan
Honeywell (All)
Hughes International
International Aeradio (All)
Jobling.James.A. (All)
John Curran (Sample)
Ketay Ltd. (All)