radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

57T224

Information - Help 
ID = 68298
       
Country:
United States of America (USA)
Brand: WLS (tubes), World's Largest Store - see also Sears, Roebuck & Co; Chicago, IL
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to 57T224 = UY224 = C324 = 124

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Indirect / Parallel, (AC/DC)
Description

Pages 762 and 763 of the Fall 1929 Sears Roebuck catalog lists Silvertone tubes for the first time, with a totally new type number for example 57T224 = UY224. Research has not yet provided a manufacturer of these tubes or a factory location and Tyne's "Saga of the Vacuum Tube" page 362 states: "No information available" for Silvertone. It is presumed that these tubes were made by the Sonatron Tube Company, with an address in Chicago and also in New York and it is also known that Sonatron acquired three smaller companies in 1929 before they themselves were acquired by National Union in September 1929 (Tyne page 359). Silvertone tubes continued to be available for some years and boxes with both Sears Roebuck and Silvertone on them are relatively common in the US. Sears Roebuck Archives state that the company "ended its association" with Silvertone (radios and or tubes is uncertain) in 1972.

 
Dimensions (WHD)
incl. pins / tip
x 123 x 45 mm / x 4.84 x 1.77 inch
Weight 50 g / 1.76 oz
Information source Sears, Roebuck Catalogs (Silvertone)   Fall issue 1929 pages 762 and 763
Saga of the Vacuum Tube, Tyne   Pages 359 and 362
 
24~~1.png
57T224: Fin Stewart
Fin Stewart

 

from Just Qvigstad

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
rmXorg