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21TE31

Information - Help 
ID = 44022
       
Country:
Czechoslovakia
Brand: Tesla; Praha, Bratislava etc.
Tube type:  Thyratron 
Identical to 21TE31 = 2D21

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect / Parallel, (AC/DC)
Dimensions (WHD)
incl. pins / tip
19 x 57 x mm / 0.75 x 2.24 x inch
Information source - - Manufacturers Literature   
 
21te31_so.png
21TE31: ARRL Handbook 1972
Michael Schlör

 

from Just Qvigstad

Usage in Models 1= 1965

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

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