[Heathkit] re 6146 tubes

[Allan Fritsche]

Hi Murray and Group.
I may not be the sharpest tool in the shed
but I had a bunch of military pull 6146's
a few years ago that had those 3 letter
designations on them along with the standard
6146, 6146A designations. Funny thing about
it was none had a manufacture emblem like
RCA, etc. on the base.
In fact as I write, I have in my hand a 6146A
with that designation along with YDB stamped
on it. No manufacture printed on the base.
I can only guess it was a way to keep track of
the tube age in Mil equipment.

Al
W5ADF




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