On Sun, 02 Dec 2007 15:49:08 +0000, Ian Thompson-Bell
wrote:

Some months ago I ran 32 different 6AU6 tubes in triode mode and
measured gm, rp and mu at an Ia of 3.8mA and Vp of 100V. I have the
results in a spreadsheet if you are interested.

Wouldn't mind a look if you can put it somewhere convenient, although
from interest only, as it is unlikely I will do any design work with
it.


I have uploaded it here http://www.ianbell.ukfsn.org/data/

as an XL spreadsheet file.

Interesting. Just tried sorting on the three columns, and while Ra and
Mu have a degree of correlation to each other, Gm appears to have none
at all.

d

--
Pearce Consulting
http://www.pearce.uk.com