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2G639

Information - Help 
ID = 73435
       
Country:
Italy
Brand: Common type Italy tube/semicond.
Tube type:  Transistor   RF/IF-Stage 
Identical to 2G639

Base Wires
Description

PNP germanium alloy transistor intended as AM broadcast IF amplifier

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
9 x 7 x 8 mm / 0.35 x 0.28 x 0.31 inch
Weight 1 g / 0.04 oz
Information source -- Schematic   

to_5_tvt_bottom~~19.png 2G639: TVT 73
Günther Stabe † 19.8.20

Usage in Models 1= 1960?? ; 1= 1964

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
 

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