Tech's Filing Cabinet Miscellaneous General Electric RCA Tube Tech Semi Tech Audio Radio Components

Passive Electronic Components. Components by GE and RCA are covered in their sections. Listed alphabetically. Some entries are books scanned by John Atwood and uploaded to the Internet Archive.

ART-13 Modulation Transformer Spec - Designed by Collins Radio, the AN/ART-13 was a late World War II aircraft transmitter, famously used in the B-29 bomber. Many of these were sold to hams as surplus. This data sheet was found amongst many other GE documents.

Georgiev 1945 The Electrolytic Capacitor - A 205 page book on the theory, construction, and use of the electrolytic capacitor.

IEE One-Plane In-Line Readouts - From Industrial Electronic Engineers, Inc., data on their numerical (and other) readouts implemented by individual light bulbs illuminating an image on film that is then projected on a screen. These make an attractive alternative to Nixies, and the images can be specified by the customer. Light bulb burn-out can be a problem, though. One-Plane Readout catalog includes forms for creating artwork. One-Plane Readout datasheets includes light bulb info and pricing. Dates are from 1961 to 1964.

Magnecraft 1966 Designers Handbook & Catalog of Reed Relays - An 82 page book on the use of reed relays and mercury-wetted contact relays. Includes data on Magnecraft relays.

Millen_75012 Phase Shift Network - This is a 90 degree phase shift network intended for SSB transmitting and receiving circuits using the "phasing technique". Circuits using this network can be found in G.E. Ham News here and here.

NL Industries Thermistors and Varistors - Thermistors are used to measure or compensate for temperature. Varistors protect against over-voltage and are also called "MOVs". Data from 1971. Thermistor-Varistor Short Form Catalog Brief descriptions and outlines. Varistor datasheets Detailed datasheets and an application note. Thermistor datasheets Detailed datasheets and application notes.

Radiart 1945 Vibrator Replacement Handbook - A cross-reference and list of specifications of vibrators used in auto radios, farm radios, etc. at the end of World War II.

US Navy 1944 United States Navy Synchros OP 1303 - A 166 page book by the RCA Service Co., Inc. on synchros and their use by the US Navy. Includes specs on Navy synchros, zeroing, and maintenance.

VPI Vacuum Thermocouples - Vacuum thermocouples are used to measure rms power up to the VHF range. This datasheet is from the late 1950s or early 1960s.