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DS-501

Information - Help 
ID = 35785
       
Country:
United States of America (USA)
Brand: Delco - tubes; USA
Developer: Delco - tubes; USA 
Tube type:  Transistor   Power/Output 
Identical to DS-501 = DS501
Similar Tubes
Normally replaceable-slightly different:
  2N278
First Source (s)
Mar.1958 : -- Collector info (Sammler) Joe Knight

Base SPECIAL TUBEBASE in general
Filament Solid State
Description Early PNP silicon transistor intended as AF power amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
37 x 12 x mm / 1.46 x 0.47 x inch
Weight 10 g / 0.35 oz
 
delco_ds_501_front.jpg
DS-501: From own collection
David Erali

 
to36.gif
DS-501: TVT 1969 Verlag Nolde Dachau
Günther Stabe

 

Usage in Models 18= 1959? ; 14= 1959 ; 7= 1960? ; 2= 1961? ; 5= 1962? ; 4= 1963 ; 2= 1964?? ; 7= 1964 ; 1= 1965? ; 1= 1965 ; 2= 1967 ; 1= 1975??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):64


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