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O202

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ID = 9335
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  OCTODE   Frequency converter   Controlling (mu) 
Identical to O202
Similar Tubes
Normally replaceable-slightly different:
  KK2
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)

Base Europe side contact P8A (Au P, 8SC) (Codex=Sto) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.13 Ampere / Direct
Description

Grid from top cap.

 
Information source Babani, International Radio Tube Encyclopaedia   p. 122 & 123
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 250, p. 551
Taschenbuch zum Röhren-Codex 1948/49

30_1.png O202: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
Usage in Models 1= 1937 ; 1= 1941

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

Collection of

Collection of a member from FIN
 
o202_triotron.jpg

 

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