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8J9SG

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ID = 25840
       
Country:
Sweden
Brand: SER, AB Svenska Elektronrör (before Svenska Radio AB); Stockholm
Tube type:  Triode-Heptode   Frequency converter   Controlling (mu) 
Identical to 8J9SG
Similar Tubes
Normally replaceable-slightly different:
  8J9SGM
Heater different:
  6J9SG
Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 8.4 Volts / If 0.3 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Description Further data to this triode-heptode are unknown by now.
If you have more data, please post them to us.
 
Text in other languages (may differ)
6j9sgmbasdiag2_2.png 8J9SG: schematic diagram
Jacob Roschy

Just Qvigstad
Usage in Models 1= 1940?? ; 1= 1946?? ; 1= 1946? ; 3= 1946 ; 2= 1947?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8

Collection of

Gerhard Eisenbarth (D)
 
8j9sg_1_r.jpg

 
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