Hello...would like to know if anyone has settings for the 421A for a
Hickok 539A or 600A tube tester. Are they the same as some other tube?

Thanks,

Dave

François Yves Le Gal wrote:

On Tue, 12 Jul 2005 14:57:49 -0700, wrote:


Are they the same as some other tube?


The 421A is equivalent to the 5998 and a close relative of the
6AS7G/6080/6520 (the WE has more gain).




Thanks for the info Francois. I was able to test it on my Hickok 600A
with the 5998 settings.

Dave