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81F21

81F21 ; Motorola Inc. ex (ID = 509918) Radio
 
81F21 ; Motorola Inc. ex (ID = 509919) Radio
81F21 ; Motorola Inc. ex (ID = 1428509) Radio 81F21 ; Motorola Inc. ex (ID = 1428511) Radio
81F21 ; Motorola Inc. ex (ID = 1056801) Radio 81F21 ; Motorola Inc. ex (ID = 712135) Radio
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81F21 ; Motorola Inc. ex (ID = 1428509) Radio
Motorola Inc. ex: 81F21 [Radio] ID = 1428509 858x1400
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For model 81F21, Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL):
Scanned from the Motorola Booklet H-329, for 1942.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
Year: 1941/1942 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 8: 6SD7GT 6J5GT 6SK7GT 6SQ7GT 6SQ7GT 6F6G 6F6G 5Y3G
Main principle Superheterodyne (common); ZF/IF 455 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Details Changer (Record changer)
Power type and voltage Alternating Current supply (AC) / 117 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
Power out
from Radiomuseum.org Model: 81F21 - Motorola Inc. ex Galvin Mfg.Co
Material Wooden case
Shape Console with Push Buttons.
Dimensions (WHD) 29 x 39 x 17 inch / 737 x 991 x 432 mm
Notes

Permeability Tuner. Built in loop antenna.

External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios 4. Edition
Circuit diagram reference Rider's Perpetual, Volume 13 = 1942 and before
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965
Literature/Schematics (1) Pre-War Consoles
Literature/Schematics (2) Radio Retailing (Radio & Television R.) (August 1941.)
Literature/Schematics (3) Motorola Booklet H-329, for 1942.


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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