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P820A

P820A ; General Electric Co. (ID = 158589) Radio
P820A ; General Electric Co. (ID = 261417) Radio P820A ; General Electric Co. (ID = 773037) Radio
P820A ; General Electric Co. (ID = 773038) Radio P820A ; General Electric Co. (ID = 773040) Radio
P820A ; General Electric Co. (ID = 1403992) Radio P820A ; General Electric Co. (ID = 1404111) Radio
P820A ; General Electric Co. (ID = 1404113) Radio  
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P820A ; General Electric Co. (ID = 261417) Radio
General Electric Co.: P820A [Radio] ID = 261417 200x300
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For model P820A, General Electric Co. (GE); Bridgeport CT, Syracuse NY:
By courtesy of Sarah Lowrey, .transistor.org
 
Country:  United States of America (USA)
Manufacturer / Brand:  General Electric Co. (GE); Bridgeport CT, Syracuse NY
Brand
 
Musaphonic
Year: 1961 ? Type: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 6:
Principle Super-Heterodyne (Super in general); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Dry Batteries / 3 Volt
Loudspeaker Magnetic loudspeaker (reed) generic. / Ø 2.62 inch = 6.7 cm
Power out
from Radiomuseum.org Model: P820A - General Electric Co. GE;
Material Modern plastics (no Bakelite or Catalin)
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Notes High impedance speaker with reed suspended between pole pieces, drives paper cone with a stylus, and is directly driven in push-pull by a pair of collectors, without an audio output transformer. One of several contemporary GE transistor radio models to employ this kind of speaker which was originally used in the 1920's because of it's high efficiency and high impedance.
Circuit diagram reference Beitman Radio Diagrams Vol. 22, 1962

Model page created by Egon Penker. See "Data change" for further contributors.



All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY
Here you find 2434 models, 1612 with images and 1744 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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