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ID = 57469
Tube type:  Transistor   Audio Frequency 
Identical to 2R21

Base Wires
Description NPN transistor intended as AF amplifier.

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2R21: (schematic)
Günther Stabe † 19.8.20

Usage in Models 1= 1964?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

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