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ST28C

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ID = 39022
       
Country:
Japan
Brand: NEC Corporation, Nippon Electric Co. Ltd. (Nippon Denki); Tokyo
Tube type:  Transistor   RF/IF-Stage 
Identical to ST28C
Similar Tubes
Normally replaceable-slightly different:
  2N309 ; AF137 ; OC45
Successor Tubes 2S156  

Base Wires
Filament Solid State
Description PNP germanium junction transistor intended as AM broadcast IF amplifier.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
8 x 9 x 5 mm / 0.31 x 0.35 x 0.20 inch
Weight 1 g / 0.04 oz
Literature -- Schematic   
 
to1_179.gif
ST28C: TVT 1969 Verlag Nolde Dachau
Günther Stabe

 

Usage in Models 3= 1959? ; 1= 1960?? ; 1= 1960?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

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