This is hilarious. The OP asked a question. And asks it again:

What's the nomenclature for that sweep tube, produced just for Admiral TVs
years ago, that's heavier-duty than any of the other tubes?

I thought it was 6MJ6 -- but, no. It has an *octal* base.

Fella used to sell 'em in some of the mid-west hamfests, but I haven't seen
him for a while. Think his name is Don, and that he was also in to Racal
receivers.

73, Dave, N3HE

"Andrew VK3BFA" wrote in message
om...
SNIP
OK, we are all agreed - EVEYONE has heaps of 807's in the junkbox for
the "one day" project.......
73 de VK3BFA Andrew