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Duo Reflex TwoTube Kit

Duo Reflex TwoTube Kit; Electrical Research (ID = 1035880) Kit
Duo Reflex TwoTube Kit; Electrical Research (ID = 1468933) Kit Duo Reflex TwoTube Kit; Electrical Research (ID = 1468934) Kit
Duo Reflex TwoTube Kit; Electrical Research (ID = 2436966) Kit Duo Reflex TwoTube Kit; Electrical Research (ID = 2436967) Kit
Duo Reflex TwoTube Kit; Electrical Research (ID = 2436968) Kit Duo Reflex TwoTube Kit; Electrical Research (ID = 2436969) Kit
Duo Reflex TwoTube Kit; Electrical Research (ID = 2436970) Kit
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Duo Reflex TwoTube Kit; Electrical Research (ID = 1468933) Kit
Electrical Research: Duo Reflex TwoTube Kit [Kit] ID = 1468933 930x683
Select picture or schematic to display from thumbnails on the right and click for download.
For model Duo Reflex TwoTube Kit, Electrical Research Laboratories Inc. (Erla); Chicago, Illinois:
Citizens Radio Call Book, May 1924, p. 148
 
Country:  United States of America (USA)
Manufacturer / Brand:  Electrical Research Laboratories Inc. (Erla); Chicago, Illinois
Year: 1924 Category: Kit (Parts plus instruction) or building instructions only
Valves / Tubes 2:
Main principle TRF without regeneration; Reflex
Tuned circuits 1 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Duo Reflex TwoTube Kit - Electrical Research
Material Various materials
Price in first year of sale 36.00 $
Collectors' prices  
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Literature/Schematics (2) Citizens Radio Call Book, May 1924, p. 148


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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