- Country
- United States of America (USA)
- Manufacturer / Brand
- Zephyr Radio Co.; Detroit, MI
- Year
- 1939 ??
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 68388
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 8
- Number of Transistors
- Semiconductors
- K22B2
- Main principle
- Superheterodyne (common); ZF/IF 456 kHz
- Wave bands
- Broadcast plus 2 Short Wave bands.
- Power type and voltage
- Alternating Current supply (AC) / 110 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: 30Y9 - Zephyr Radio Co.; Detroit, MI
- Notes
-
Note that the K22B2 ballast does not count as an active device in the tube count.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 10 = 1939 and before
- Other Models
-
Here you find 90 models, 26 with images and 76 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Zephyr Radio Co.; Detroit, MI