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77 Ch= 231 T

Image ID = 635638 for Erla = Electrical  77 Ch= 231
Image ID = 635638 for Erla = Electrical  77 Ch= 231
 
Country: United States of America (USA) Manufacturer/Brand: Erla = Electrical Research Labs; Chicago
Year: 1930 Type: Radio or Tuner
Valves / Tubes 7: 32 32 32 30 30 71A 71A
Principle TRF Tuned-radio-frequency (straight) general; Screengrid 1926-1935
Tuned circuits 4 AM circuit(s);
Wave bands Broadcast only (MW).
Power type and voltage Line / Batteries (any type) / 135 DC; 32 Batt. Volt
Loudspeaker/pwr.out Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
from Radiomuseum.org Model: 77 Ch= 231 [T]
Shape Tablemodel, with any shape - general.
Notes Farm radio; one dial (primary tuning control knob); 4-gang condenser; push-pull af output stage.

All listed radios etc. from Erla = Electrical Research Labs; Chicago
Here you find 113 models, 11 with images and 54 with schematics.


  
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