77-A Ch= B series
Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
- Year
- 1933
- Category
- Car Radio, perhaps also + sound player/recorder
- Radiomuseum.org ID
- 138546
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- Superhet with RF-stage; ZF/IF 456 kHz
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: 77-A Ch= B series - Motorola Inc. ex Galvin Mfg.Co
- Notes
- Sync.vibrator for +B.
- Circuit diagram reference
- Rider's Perpetual, Volume 4 = ca. 1934 and before
- Literature/Schematics (1)
- Riders 4-13 , Riders 7-12
- Author
- Model page created by Dirk Taekels. See "Data change" for further contributors.
- Other Models
-
Here you find 4623 models, 2967 with images and 4123 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)