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1-251 Ch= 1-215

1-251 Ch= 1-215; Sylvania Hygrade, (ID = 237305) Radio
 
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 237306) Radio
 
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 237307) Radio
 
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 582214) Radio
 
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 582215) Radio
 
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 582216) Radio
 
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 582217) Radio
1-251 Ch= 1-215; Sylvania Hygrade, (ID = 237312) Radio
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1-251 Ch= 1-215; Sylvania Hygrade, (ID = 237312) Radio
Sylvania Hygrade,: 1-251 Ch= 1-215 [Radio] ID = 237312 482x385
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For model 1-251 Ch= 1-215, Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
 
Country:  United States of America (USA)
Manufacturer / Brand:  Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Year: 1950 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 12BE6 12BA6 12AT6 50C5 35W4
Main principle Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage AC/DC-set / 110 - 120 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
Power out 1 W (unknown quality)
from Radiomuseum.org Model: 1-251 Ch= 1-215 - Sylvania Hygrade, GTE, Nilco;
Material Modern plastics (no Bakelite or Catalin)
Shape Tablemodel, Mantel/Midget/Compact up to 14" width, but not a Portable (See power data. Sometimes with handle but for mains only).
Notes The Sylvania Model 1-251 is an AC/DC operated AM Superheterodyne Receiver with Loop Antenna.
External source of data Ernst Erb
Source of data The Radio Collector's Directory and Price Guide 1921 - 1965
Circuit diagram reference Rider's Perpetual, Volume 22, covering 1951
Mentioned in Antique Radios, Johnson 1986
Literature/Schematics (1) Photofact Folder, Howard W. SAMS (Date 8-50, Set 103, Folder 16)


All listed radios etc. from Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Here you find 894 models, 412 with images and 756 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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