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22-P

22-P ; Electrical Research (ID = 1133406) Radio 22-P ; Electrical Research (ID = 1133407) Radio
22-P ; Electrical Research (ID = 1133408) Radio 22-P ; Electrical Research (ID = 1133409) Radio
22-P ; Electrical Research (ID = 1133410) Radio 22-P ; Electrical Research (ID = 1594836) Radio
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22-P ; Electrical Research (ID = 1133406) Radio
Electrical Research: 22-P [Radio] ID = 1133406 933x1000
Select picture or schematic to display from thumbnails on the right and click for download.
For model 22-P, Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
 
Country:  United States of America (USA)
Manufacturer / Brand:  Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Year: 1931 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: 35 24 47 80
Main principle TRF (Tuned-Radio-Frequency but use of regeneration unknown)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC)
Loudspeaker Permanent or electro-dynamic (moving coil), system not known yet.
Power out
from Radiomuseum.org Model: 22-P - Electrical Research
Material Wooden case
Shape Tablemodel with Clock ((Alarm-) Clock Radio).
Price in first year of sale 39.00 $
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Mentioned in Collector's Guide to Antique Radios 4. Edition
Literature/Schematics (1) Cathedral & Tombstone Radios (page 107.)


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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