Vacuum Tube Detector Type 211
General Radio Company; Cambridge (MA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- General Radio Company; Cambridge (MA)
- Year
- 1919 ?
- Category
- Radio module pre 1926 (not a part, not a key)
- Radiomuseum.org ID
- 313637
-
- alternative name: GenRad
- Number of Tubes
- 1
- Valves / Tubes
- Main principle
- Detector with Vacuum Tube (Valve), no tuner
- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - - No sound reproduction output.
- Material
- Wooden case
- from Radiomuseum.org
- Model: Vacuum Tube Detector Type 211 - General Radio Company;
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
-
Unit contains a vacuum tube socket, filament rheostat, filament switch, plate battery (typically in multiples of 22V), grid leak, and variable grid condenser. The unit is joined with a tuning circuit via binding posts, and is suited to be used with the tube amplifier Type 206.
- Price in first year of sale
- 32.00 $
- Mentioned in
- Atlantic Radio Co. Bulletin 14 (1919)
- Author
- Model page created by Nikolaus Löwe. See "Data change" for further contributors.
- Other Models
-
Here you find 238 models, 212 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from General Radio Company; Cambridge (MA)