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81C Cylindrical loop

81C ; Motorola Inc. ex (ID = 509912) Radio
 
81C ; Motorola Inc. ex (ID = 509913) Radio
81C ; Motorola Inc. ex (ID = 2487182) Radio 81C ; Motorola Inc. ex (ID = 2487183) Radio
81C ; Motorola Inc. ex (ID = 712133) Radio 81C ; Motorola Inc. ex (ID = 1432575) Radio
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81C ; Motorola Inc. ex (ID = 2487182) Radio
Motorola Inc. ex: 81C [Radio] ID = 2487182 1400x1957
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For model 81C Cylindrical loop, Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
Year: 1939/1940 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 5 W (unknown quality)
from Radiomuseum.org Model: 81C [Cylindrical loop] - Motorola Inc. ex Galvin Mfg.Co
Material Wooden case
Shape Console with Push Buttons.
Dimensions (WHD) 29 x 43 x 12 inch / 737 x 1092 x 305 mm
Notes

Using cylindrical loop antenna. Tuning Range 540 to 1720; 5650 to 18,000 kHz (kc).

External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios 4. Edition
Circuit diagram reference Rider's Perpetual, Volume 11 = ca. 1940 and before
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965
Literature/Schematics (1) Pre-War Consoles
Literature/Schematics (3) Motorola Folder H-101A for 1940.


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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