Detector & Two-Step Audio Amplifier
Borch Radio Laboratory; Berkeley, California
- Country
- United States of America (USA)
- Manufacturer / Brand
- Borch Radio Laboratory; Berkeley, California
- Year
- 1921
- Category
- Radio module pre 1926 (not a part, not a key)
- Radiomuseum.org ID
- 221823
- Number of Tubes
- 3
- Main principle
- Detector with Vacuum Tube (Valve), no tuner; 2 AF stage(s)
- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case
- from Radiomuseum.org
- Model: Detector & Two-Step Audio Amplifier - Borch Radio Laboratory;
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
- Borch Radio Laboratory Detector Panel and Two-Step Amplifier Panel. 1921 Price: $40.00 w/o cabinet $45.00 with cabinet
- Price in first year of sale
- 45.00 USD
- Literature/Schematics (1)
- Radio for December 1921 magazine advertisement page 237
- Author
- Model page created by Alan Larsen. See "Data change" for further contributors.
- Other Models
-
Here you find 7 models, 7 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Borch Radio Laboratory; Berkeley, California