Challenger BX Crystal Microphone
Turner Co. (The); Cedar Rapids (IA)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Turner Co. (The); Cedar Rapids (IA)
- Year
- 1940–1948
- Category
- Microphone or Pick-up element
- Radiomuseum.org ID
- 318990
-
- Brand: Colortone
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: Challenger BX Crystal Microphone - Turner Co. The; Cedar Rapids
- Notes
-
Crystal microphone, brown enamel finish.
Response: 50-6000 Hz.
Level: 52 db below 1 Volt/dyne/sq.cm.
7 foot cable.
- Price in first year of sale
- 9.95 USD
- Mentioned in
- Radio News (Oct. 1940, pg. 32)
- Author
- Model page created by Rodney Boleyn. See "Data change" for further contributors.
- Other Models
-
Here you find 74 models, 57 with images and 23 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Turner Co. (The); Cedar Rapids (IA)