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ID = 25842
Brand: SER, AB Svenska Elektronrör (before Svenska Radio AB); Stockholm
Tube type:  Triode-Hexode   Frequency converter 
Identical to 8M9GM
Similar Tubes
Heater different:

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description Further data to this triode-hexode are unknown by now.
If you have more data, please post them to us.
Text in other languages (may differ)

8M9GM: schematic diagram
Jacob Roschy

6m9gmrmo~~2.png 8M9GM: collection JR
Jacob Roschy

Just Qvigstad
Usage in Models 1= 1947? ; 1= 1949? ; 1= 1950?

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

Collection of



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