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2G640

Information - Help 
ID = 73436
       
Country:
Italy
Brand: Common type Italy tube/semicond.
Tube type:  Transistor   Frequency converter 
Identical to 2G640
Similar Tubes
Other base and data slightly different:
  OC170

Base Wires
Filament Solid State
Description

PNP germanium alloy transistor intended as AM mixer / oscillator

 
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~~20.png
2G640: TVT 73
Günther Stabe

 

Usage in Models 1= 1964

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

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