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81C Square loop

81C ; Motorola Inc. ex (ID = 521088) Radio
 
81C ; Motorola Inc. ex (ID = 521089) Radio
81C ; Motorola Inc. ex (ID = 712134) Radio
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81C ; Motorola Inc. ex (ID = 712134) Radio
Motorola Inc. ex: 81C [Radio] ID = 712134 451x700
Select picture or schematic to display from thumbnails on the right and click for download.
For model 81C Square loop, Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL):
Image Courtesy of Mark V. Stein for Radiomuseum.org use only.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
Year: 1939 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 6A7 76 6D6 6Q7G 6Q7G 41 41 80
Main principle Superheterodyne (common); ZF/IF 455 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Details
Power type and voltage Alternating Current supply (AC) / 117 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: 81C [Square loop] - Motorola Inc. ex Galvin Mfg.Co
Material Wooden case
Shape Console with Push Buttons.
Notes Using square loop antenna.
Source of data Pre-War Consoles
Circuit diagram reference Rider's Perpetual, Volume 11 = ca. 1940 and before
Literature/Schematics (1) Riders 11-23 , 11-26

Model page created by Dirk Taekels. See "Data change" for further contributors.



All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
Here you find 4109 models, 2818 with images and 3747 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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