Other than the filament pins and some really specialty tubes the tube
had better not have any effect on the resistance measurements and if it
does throw it as far as you can.

Bill & Suzie Whatley wrote:

You will get a more useful reply if you can give the identity of the tube.
( 6BA6, 12AU7, etc, etc.)

The resistance charts supplied with the older tube gear was usually measured
with the tubes still in the sockets.

73,

WA5VRL
Willis