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ID = 48281
Brand: Common type Italy tube/semicond.
Tube type:  Transistor   Power-supply 
Identical to PTO/1
Similar Tubes
Normally replaceable-slightly different:
  KI ; PTO ; PTO/3
Other characteristic (electr. data):

Base Wires
Filament Solid State

PNP germanium alloy transistor usually wired as fast diode (second choice type?)

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
6 x 10 x 6 mm / 0.24 x 0.39 x 0.24 inch
Weight 1 g / 0.04 oz
Information source -- Schematic   
  PTO/1: (schematic)
Günther Stabe † 19.8.20
    More ...
PTO/1: (schematic)
Günther Stabe † 19.8.20


Usage in Models 1= 1969 ; 3= 1970?? ; 2= 1970 ; 1= 1972 ; 1= 1975??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):8

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