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Police Car Radio 139

Police Car Radio 139; United American (ID = 771690) Car Radio
 
Police Car Radio 139; United American (ID = 771691) Car Radio
 
Police Car Radio 139; United American (ID = 771693) Car Radio
 
Police Car Radio 139; United American (ID = 771695) Car Radio
 
Police Car Radio 139; United American (ID = 771696) Car Radio
 
Police Car Radio 139; United American (ID = 771700) Car Radio
 
Police Car Radio 139; United American (ID = 771701) Car Radio
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Police Car Radio 139; United American (ID = 771690) 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:  United American Bosch (Magneto Corporation); Springfield (MA)
alternative name
 
American Bosch Magneto
Brand
Essex
Year: 1934 ? Category: Car Radio, perhaps also + sound player/recorder
Valves / Tubes 5: 78 6A7 78 75 41
Main principle Superhet with RF-stage; ZF/IF 456 kHz
Wave bands Wave Bands given in the notes.
Details
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / =6 Volt
Loudspeaker
Power out
from Radiomuseum.org Model: Police Car Radio 139 - United American Bosch Magneto
Material Metal case
Shape Chassis only or for «building in»
Notes 1500 to 1800kc; +B by "Magmotor" (Einanker-Umformer);
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 5 = ca. 1934 and before


All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)
Here you find 412 models, 158 with images and 269 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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