Large 1950's TV Valves

[OldTickTock]

Hee hee thanks Trevor, actually that was me being Mr butter fingers and not making my edit in post one clear, I rummaged in the NOS section of my valves and found that what I thought was a P4, was in fact a P1.

What's most impressive is that you knew that without having the bottle in front of you, Oh to have that sort of knowledge to recall.