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R2 & A2

R2 & A2 ; Electrical Research (ID = 634619) Radio
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R2 & A2 ; Electrical Research (ID = 634619) Radio
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Country:  United States of America (USA)
Manufacturer / Brand:  Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Year: 1929 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 26 26 26 27 26 71A 71A 80
Main principle TRF without regeneration
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 110 Volt
Loudspeaker
Power out
from Radiomuseum.org Model: R2 & A2 - Electrical Research
Material Wooden case
Shape Console with any shape - in general
Notes One dial (primary tuning control knob) ; 4-gang condenser; phono input; push-pull af output stage;
This model is a combination of the "R2" rf-unit and the "A2" af-unit.
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965


All listed radios etc. from Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Here you find 131 models, 45 with images and 61 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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