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2N139

Information - Help 
ID = 36502
       
Country:
United States of America (USA)
Brand: RCA (RCA Victor Co. Inc.); New York (NY)
Tube type:  Transistor   RF/IF-Stage 
Identical to 2N139 = 121-75 = 121-76
Similar Tubes
Normally replaceable-slightly different:
  2N170 ; 2N2614 ; 2N409 ; CK759 ; CK760 ; HJ-22D ; HJ22D
First Source (s)
Mar.1956 : -- Collector info (Sammler)
Successor Tubes 2N1638  

Base Wires
Filament Solid State
Description

PNP germanium alloy transistor intended as AM broadcast IF amplifier.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
6 x 12 x mm / 0.24 x 0.47 x inch
Weight 1 g / 0.04 oz
Literature -- Collector info (Sammler)   KTT 1969/70, TTT Steidle 1981, Towers ITVL
  2n139_applic.png
  2N139: Personal file
Antonio Rabitti
 
usa_rca_2n139.jpg
2N139
Siegfried Neumann

 
to40_4.gif
2N139: TTT Steidle 1981
Günther Stabe

 
2n139_data.png
2N139: RCA Transistor Manual
Heinz Höger


Usage in Models 1= 1955 ; 7= 1956? ; 6= 1956 ; 9= 1957? ; 10= 1957 ; 1= 1958?? ; 9= 1958 ; 3= 1959? ; 4= 1959 ; 1= 1960? ; 1= 1961? ; 1= 1962?? ; 3= 1964 ; 1= 1968?? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):58


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