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ID = 6510
United States of America (USA)
Tube type:  Double Diode   Detector 
Identical to 2S
Similar Tubes
Normally replaceable-slightly different:
  2S/4S ; S2_USA

Base UY-Base, 5 Pins (USA, April 1927) (Codex=H)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.35 Ampere / Indirect / Specified voltage AND current AC/DC
Description The wshield on this tube is metallised paint. Replacement tubes made by Nqational Union, Raytheon and Sylvania utilise 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
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Collector info (Sammler)   

2S: Internet
Miguel Angel Trujillo-Rodriguez

444.png 2S: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
Usage in Models 2= 1931 ; 9= 1932?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):11


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