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TF71

Information - Help 
ID = 33973
       
Country:
Germany
Brand: Siemens; D (S.& Halske / S. Electrogeräte)
Tube type:  Transistor   Power/Output 
Identical to TF71
Similar Tubes
Normally replaceable-slightly different:
  OC140
Different maximum ratings:
  AC176 ; TF70 ; TF72
First Source (s)
Apr.1954 : -- Collector info (Sammler)
Predecessor Tubes TF70  
Successor Tubes TF72  

Base Wires
Filament Solid State
Description

NPN germanium junction transistor intended as AF low power amplifier / driver.
Variant: TF71K with heatsink, match pairs -

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
8 x 7 x 4 mm / 0.31 x 0.28 x 0.16 inch
Weight 2 g / 0.07 oz
Literature -- Collector info (Sammler)   KTT 1969/70
  tf71_umgeb.gif
  TF71: Gigafon T
Günther Stabe
 
d_siemens_tf71.jpg
TF71: Eigene Sammlung
Siegfried Neumann

 
us_old.gif
TF71: TTT Steidle 1981
Günther Stabe

 
d_gsn1_gst02_kennl._8.png
TF71: Funktechnik 19/54
Egon Strampe


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

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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