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309-W

309-W ; Sentinel Radio Corp. (ID = 91737) Radio
 
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309-W ; Sentinel Radio Corp. (ID = 496166) Radio
 
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309-W ; Sentinel Radio Corp. (ID = 913958) Radio
Sentinel Radio Corp.: 309-W [Radio] ID = 913958 933x677
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For model 309-W, Sentinel Radio Corp., Evanston, Illinois
 
Country:  United States of America (USA)
Manufacturer / Brand:  Sentinel Radio Corp., Evanston, Illinois
Year: 1947/1948 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 12BE6 12BA6 12AT6 50B5 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 3 inch = 7.6 cm
Power out
from Radiomuseum.org Model: 309-W - Sentinel Radio Corp., Evanston
Material Modern plastics (no Bakelite or Catalin)
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 8 x 5.375 x 5 inch / 203 x 137 x 127 mm
Notes

Color= Walnut. Built in loop antenna.

A Sentinel Folder for season 1947/48 shows the following models together: 285, 286, 289, 296, 298, 302, 305, 309, 313, 314, 315 and 316 in different colors, for instant suffix "I" for Ivory and "W" for Walnut.

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 17 = 1948 and before
Mentioned in Collector's Guide to Antique Radios 4. Edition
Literature/Schematics (1) Photofact Folder, Howard W. SAMS (Date 11-47, Set 28, Folder 4718-30)
Literature/Schematics (2) Table Top Radios Vol. 1 Stein 98 (page 140.)
Literature/Schematics (3) Shown for Season 1947/48 in a Sentinel Folder.


All listed radios etc. from Sentinel Radio Corp., Evanston, Illinois
Here you find 616 models, 312 with images and 502 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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