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Nipigon Ch= 7D831

Nipigon Ch= 7D831; De Forest DeForest (ID = 2239695) Radio
 
Nipigon Ch= 7D831; De Forest DeForest (ID = 2239694) Radio
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Nipigon Ch= 7D831; De Forest DeForest (ID = 2239695) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  Canada
Manufacturer / Brand:  De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto
Year: 1937/1938 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 6A7M 6K7M 86M 6F5M 6X6 6F6M 2X3 2X3
Main principle Super-Heterodyne (Super in general); ZF/IF 456 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast, Short Wave(s) and Police.
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm
Power out
from Radiomuseum.org Model: Nipigon Ch= 7D831 - De Forest DeForest Crosley
Shape Console with any shape - in general
Notes The 6X6 tube is a tuning indicator. The Rogers 12-85 is electronically identical to this set. The Majestic 785 is nearly identical with an added "Silent Tuning" switch.
Circuit diagram reference Radio College of Canada
Mentioned in RCC Rogers-Majestic section page 29, 30 & Cross Reference
Literature/Schematics (1) -- Original-techn. papers. (Rogers-Majestic & De Forest Service Manual Volume 3, page 21)

Model page created by Robin Roeckers. See "Data change" for further contributors.



All listed radios etc. from De Forest (DeForest) Crosley Radio, Consolidated Industries; Toronto
Here you find 250 models, 105 with images and 169 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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