Keyer TG-34
MILITARY U.S. (different makers for same model)
- Country
- United States of America (USA)
- Manufacturer / Brand
- MILITARY U.S. (different makers for same model)
- Year
- 1943
- Category
- Military Equipment (not Re, Tr or RXT)
- Radiomuseum.org ID
- 121076
Bernd Jacobi - Surplus-Handbuch Band 2
Bernd Jacobi - Surplus-Handbuch Band 2
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 4
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC) / 115; 230 Volt
- Loudspeaker
- - For headphones or amp. / Ø 2.5 inch = 6.4 cm
- Material
- Metal case
- from Radiomuseum.org
- Model: Keyer TG-34 - MILITARY U.S. different makers
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 15.813 x 10.56 x 10.5 inch / 402 x 268 x 267 mm
- Notes
-
US Signal Corps code practice set with tone generator. Inked tape, 4 tubes plus a photocell. This set was designed to automatically send audio tone dot and dash signals at varying speeds for students to practice copying by hand or on typewriter. A variable speed electric motor pulled a paper tape past a photoelectric tube. A light shined through to the photoelectric tube unless it was blocked by black ink marks on the tape. This determined when the oscilator would be keyed to make the tones. Original manual is TM 11-443, "Keyer TG-34-A", 25 October 1943.
By 1959 there were three variants of the original TG-34 Keyer. These variants had different types of circuitry for the oscillator, keying amplifier, and photoelectric cell. These differences, along with the associated tube configurations, are documented in U.S. Army Technical Manual "TM11-6940-200-35 Field and Depot Maintenance, Keyers TG-34-A, TG-34-B and KY-127/GG".
- Net weight (2.2 lb = 1 kg)
- 38.5 lb (38 lb 8 oz) / 17.479 kg
- Source of data
- -- Original-techn. papers.
- Mentioned in
- Perera's "Telegraph Collectors Guide"
- Author
- Model page created by a member from A. See "Data change" for further contributors.
- Other Models
-
Here you find 398 models, 350 with images and 210 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from MILITARY U.S. (different makers for same model)