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77-A Ch= B series

77-A Ch= B series; Motorola Inc. ex (ID = 509424) Car Radio
 
77-A Ch= B series; Motorola Inc. ex (ID = 509429) Car Radio
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77-A Ch= B series; Motorola Inc. ex (ID = 509424) Car Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
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
Valves / Tubes 7: 78 77 78 85 35 12A5 12A5
Main principle Superhet with RF-stage; ZF/IF 456 kHz
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast only (MW).
Details
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)
Power out
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

Model page created by Dirk Taekels. See "Data change" for further contributors.



All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
Here you find 4109 models, 2818 with images and 3747 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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