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The Economical 50-R Hearing Aid

The Economical 50-R Hearing Aid; Zenith Radio Corp.; (ID = 1411922) Misc The Economical 50-R Hearing Aid; Zenith Radio Corp.; (ID = 1411921) Misc
The Economical 50-R Hearing Aid; Zenith Radio Corp.; (ID = 1411920) Misc The Economical 50-R Hearing Aid; Zenith Radio Corp.; (ID = 504493) Misc
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The Economical 50-R Hearing Aid; Zenith Radio Corp.; (ID = 1411922) Misc
Zenith Radio Corp.;: The Economical 50-R Hearing Aid [Misc] ID = 1411922 933x1233
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For model The Economical 50-R Hearing Aid, Zenith Radio Corp.; Chicago, IL
 
Country:  United States of America (USA)
Manufacturer / Brand:  Zenith Radio Corp.; Chicago, IL
alternative name
 
Chicago Radio Lab
Year: 1958 Category: Miscellaneous (Other, Various) - see notes
Semiconductors (the count is only for transistors) 4: 2N279 2N280 2N280 2N280
Main principle Audio-Amplification
Wave bands - without
Details Hearing aid
Power type and voltage Dry Batteries
Loudspeaker - only for Earphone!
Power out
from Radiomuseum.org Model: The Economical 50-R Hearing Aid - Zenith Radio Corp.; Chicago,
Material Metal case
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Notes

The 4 transistors are made in Holland and each socketed. 

The window in the clip is the microphone and it uses one "N" battery.

Mentioned in Zenith Transistor Radios

Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.



All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4264 models, 3890 with images and 3381 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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