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Duo Reflex ThreeTube Kit

Duo Reflex ThreeTube Kit; Electrical Research (ID = 1035825) Kit
 
Duo Reflex ThreeTube Kit; Electrical Research (ID = 1740093) Kit
 
Duo Reflex ThreeTube Kit; Electrical Research (ID = 2083149) Kit
 
Duo Reflex ThreeTube Kit; Electrical Research (ID = 2083151) Kit
 
Duo Reflex ThreeTube Kit; Electrical Research (ID = 2083305) Kit
Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741127) Kit Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741128) Kit
Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741123) Kit Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741124) Kit
Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741125) Kit Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741126) Kit
Duo Reflex ThreeTube Kit; Electrical Research (ID = 1468935) Kit Duo Reflex ThreeTube Kit; Electrical Research (ID = 1468936) Kit
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Duo Reflex ThreeTube Kit; Electrical Research (ID = 1741127) Kit
Electrical Research: Duo Reflex ThreeTube Kit [Kit] ID = 1741127 733x368
Select picture or schematic to display from thumbnails on the right and click for download.
For model Duo Reflex ThreeTube Kit, Electrical Research Laboratories Inc. (Erla); Chicago, Illinois:
ERLA Duo-Reflex 3 Front Panel view
 
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 3:
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 ThreeTube Kit - Electrical Research
Material Various materials
Price in first year of sale 49.00 $
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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