[Boatanchors] 1625 tube

[Glen Zook]

The 1625 is the 7-pin "medium" base and not octal.

Glen, K9STH


--- Troglodite at aol.com wrote:

The 1625 is also an octal base, verses the 5 pin based
807. I was surprised to find octal based tubes in sets
from 1937. Apparently, the octal  design appeared a
few years before I originally thought it did.


=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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