Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 46633
Brand: Tesla; Praha, Bratislava etc.
Tube type:  Transistor   Power/Output 
Identical to GC521 = GC521K
Similar Tubes
Normally replaceable-slightly different:

Base Wires
Description NPN germanium alloy transistor intended as AF low power amplifier.

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

GC521: electronica 136
Egon Strampe

to1_tvt_101.gif GC521: TVT 73
Günther Stabe † 19.8.20

GC521: electronica 129
Egon Strampe

Usage in Models 1= 1969 ; 1= 1970 ; 1= 1980?

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]

Data Compliance More Information