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AC187

Information - Help 
ID = 33704
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Tube type:  Transistor   Power/Output 
Identical to AC187
Similar Tubes
Other shape (e.g. bulb type):
  AC186
Normally replaceable-slightly different:
  2N95 ; 2SD352 ; AC127 ; AC141 ; AC175 ; AC176 ; AC179 ; AC194 ; GC187K ; GC520 ; GC520K ; GC521K ; OC987
Other class quality (otherwise equal):
  AC181VII
Different maximum ratings:
  AC181 ; NKT773
Other characteristic (electr. data):
  AC185
First Source (s)
Mar.1965 : Valvo-Berichte
Predecessor Tubes AC127  
Successor Tubes AC181  

Base Wires
Filament Solid State
Description NPN germanium alloy transistor intended as low power amplifier in AF applications.
Made by Valvo, Philips, Telefunken, Siemens and others.
Manufactored with heat sink = AC187K; was also available without heat sink (with separate fastening) = AC187. 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
7 x 16 x mm / 0.28 x 0.63 x inch
Weight 1 g / 0.04 oz
Literature -- Collector info (Sammler)   KTT 1969/70
  ac187_umg.gif
  AC187: Valvo Handbuch 1968
Günther Stabe
 
ac187_3.jpg
AC187: Eigene Sammlung
Hermann Fleischanderl

 
to1k_ebc_1.gif
AC187: Siemens
Günther Stabe

 
ac187_kennli1.png
AC187: Valvo Handbuch 1968
Günther Stabe


Usage in Models 2= 1960?? ; 1= 1962? ; 9= 1965?? ; 1= 1965 ; 5= 1966?? ; 1= 1966? ; 22= 1966 ; 3= 1967?? ; 10= 1967? ; 96= 1967 ; 8= 1968?? ; 23= 1968? ; 121= 1968 ; 3= 1969?? ; 20= 1969? ; 124= 1969 ; 57= 1970?? ; 21= 1970? ; 93= 1970 ; 4= 1971?? ; 8= 1971? ; 85= 1971 ; 7= 1972?? ; 25= 1972? ; 62= 1972 ; 1= 1973?? ; 8= 1973? ; 37= 1973 ; 4= 1974?? ; 4= 1974? ; 33= 1974 ; 24= 1975?? ; 6= 1975? ; 16= 1975 ; 7= 1976? ; 29= 1976 ; 5= 1977?? ; 4= 1977 ; 1= 1978?? ; 2= 1978? ; 4= 1979? ; 12= 1980?? ; 1= 1980 ; 1= 1984 ; 1= 1986?? ; 2= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1013


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