Subject: Re: tubes??? 4CX250F
Date: Fri, 23 May 1997 15:51:56 -0700 (PDT)
From: "Edward V. Phillips" <ed-at-alumni.caltech.edu>
To: tesla-at-pupman-dot-com
Those things (4CX250 series) are kinda fragile and take
a good blast of forced air cooling. I'd stick with the big
filamentary triodes, which are plenty rugged, rather than use
an oxide-coated cathode.
Ed