Relay - Type No. 202
Leach Relay Co.; San Francisco, CA
- Country
- United States of America (USA)
- Manufacturer / Brand
- Leach Relay Co.; San Francisco, CA
- Year
- 1920 ?
- Category
- Morse-Equipment & TTY, RTTY, TDD etc.
- Radiomuseum.org ID
- 326370
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - - No sound reproduction output.
- Material
- Bakelite case
- from Radiomuseum.org
- Model: Relay - Type No. 202 - Leach Relay Co.; San Francisco
- Dimensions (WHD)
- 5 x 1.75 x 4 inch / 127 x 44 x 102 mm
- Notes
-
Val Leach a World War I radio operator was frustrated by the two-way communication technology that prevented a receiving telegraph operator from breaking into or stopping a sender's transmission. In 1919, he invented the Leach Break-in Relay, a device that revolutionized telecommunications, launched the Leach Relay Company and began building and selling these relays.
- Net weight (2.2 lb = 1 kg)
- 1 lb 7 oz (1.438 lb) / 0.653 kg
- Mentioned in
- - - Manufacturers Literature (Picture of relay and date 1919)
- Author
- Model page created by Bruce Morgenstern. See "Data change" for further contributors.
- Other Models
-
Here you find 1 models, with images and with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Leach Relay Co.; San Francisco, CA
Collections
The model Relay - Type No. 202 is part of the collections of the following members.