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4S

Information - Help 
ID = 6514
       
Country:
United States of America (USA)
Brand:
Tube type:  Double Diode   Audio Frequency 
Identical to 4S
Similar Tubes
Normally replaceable-slightly different:
  2S/4S

Base UY-Base, 5 Pins (USA, April 1927) (Codex=H)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Description The shield on this tube is metallised paint. Replacement tubes made by National Union, Raytheon and Sylvania utilised a sheet metal shield. 
Dimensions (WHD)
incl. pins / tip
x 103 x 34 mm / x 4.06 x 1.34 inch
Weight 38 g / 1.34 oz
Literature Taschenbuch zum Röhren-Codex 1948/49   
-- Collector info (Sammler)   
  4s.png
  4S: Internet
Miguel Angel Trujillo-Rodriguez
 
4-smajestic_1_klein.jpg
4S
Geri Meier

 
444_1.png
4S: Telefunken Werkstattbuch
Wolfgang Bauer

 

Usage in Models 1= 1932? ; 4= 1932 ; 3= 1933

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8


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