Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf)
Top contact with a cap.
Usada en
Radio/TV-reception etc.
Filamento
Vf 6.3 Volt / If 0.3 Ampere / Indirect
Literatura
The Saga of Marconi Osram Valve p. 142 & 341
History of the British Radio Valve to 1940 p. 147 & 181
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49