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СО-242so-242

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ID = 22088
       
Country:
Soviet Union
Brand: Common type USSR (SU) tube/semicond.
Tube type:  Pentagrid-Converter (Heptode)   Pentagrid (old) 
Identical to СО-242

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 2 Volts / If 0.16 Ampere / Direct / Battery =
 
_so242.jpeg
СО-242: Photo of tube from my collection - TS
Tomasz Szczesniak

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so242.png
СО-242: oldradio.qrz.ru
Jacob Roschy

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from Just Qvigstad

Usage in Models 1= 1947 ; 1= 1948

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


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