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GT81R

Information - Help 
ID = 41050
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Transistor   Audio Frequency 
Identical to GT81R
Similar Tubes
Normally replaceable-slightly different:
  2N109 ; 2N407 ; 2N65 ; 2S14

Base Wires
Filament Solid State
Description PNP germanium alloy transistor intended as AF pre-amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
9 x 7 x 4 mm / 0.35 x 0.28 x 0.16 inch
Weight 1 g / 0.04 oz
Information source Photofact Folder, Howard W. SAMS   
-- Collector info (Sammler)   KTT 1969/70
  gt81_umgeb1.gif
  GT81R: Funkschau 1959 H.6 S.128
Günther Stabe † 19.8.20
 
to30_2.gif
GT81R: TTT Steidle 1981
Günther Stabe † 19.8.20

 

Usage in Models 3= 1957? ; 1= 1957 ; 3= 1958 ; 3= 1959?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10

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