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2SB172

Information - Help 
ID = 36814
       
Country:
Japan
Brand: Common type Japan tube/semicond.
Tube type:  Transistor   Audio Frequency 
Identical to 2SB172
Similar Tubes
Normally replaceable-slightly different:
  2SB172A ; AC151 ; OC72

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

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
6 x 10 x mm / 0.24 x 0.39 x inch
Weight 1 g / 0.04 oz
Literature -- Collector info (Sammler)   TTT Steidle 1981, Towers IVT
 
2sb172~~1.jpg
2SB172: Sammlung PR
Peter Roggenhofer † 25.4.18

 
to1_ttt_163.gif
2SB172: TTT Steidle 1981
Günther Stabe

 

Usage in Models 2= 1958? ; 2= 1958 ; 1= 1959?? ; 4= 1959? ; 15= 1960?? ; 19= 1960? ; 1= 1960 ; 2= 1961?? ; 5= 1961? ; 7= 1961 ; 8= 1962?? ; 11= 1962? ; 2= 1962 ; 4= 1963?? ; 8= 1963? ; 4= 1963 ; 5= 1964?? ; 6= 1964? ; 2= 1964 ; 10= 1965?? ; 7= 1965? ; 2= 1965 ; 4= 1966?? ; 2= 1966 ; 3= 1967?? ; 2= 1967? ; 4= 1968?? ; 4= 1968? ; 1= 1969? ; 3= 1969 ; 9= 1970?? ; 1= 1970? ; 1= 1970 ; 1= 1971 ; 3= 1972?? ; 6= 1972 ; 1= 1973 ; 1= 1974? ; 2= 1974 ; 2= 1975?? ; 1= 1975 ; 1= 1977 ; 1= 1978 ; 3= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):183


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