Phil Allison wrote:

"Nick Gorham"


Thats annoying, I am now trying to find what the battery output valve was
with a top cap.




** The 1B8-GT was popular in battery portables.

http://www.nj7p.org/Tube4.php?tube=1B8GT



....... Phil






Ah, yes, that would make sense, single ended pentode output stage.
Thanks Phil.

--
Nick