'Oil can' shape UHF transmitting triode. Glass spacers.
100W max plate dissipation with forced-air cooling. Gain 100, Gm 17000umhos, 500MHz max full ratings operating frequency.
This was the forerunner of the many 'oil-can' power triodes, with glass and ceramic spacers.
Literatur
Essential Characteristics, GE 1973
Tube Lore (II) p. 82 & 214
Taschenbuch zum Röhren-Codex 1948/49
