There's a complication in that you have to compare apples with apples, and not
potatoes. Plus the fact that the grounded cathode tetrode with NFB can do as
well as the triode.
Like all these things, there's more shades of grey than there are blacks and
BTW, I don't know if you all saw the news that Alan Harbach has become a silent
key: I believe the business is being carried on, though.
FAQ on WWW: http://www.contesting.com/FAQ/amps
Administrative requests: amps-REQUEST@contesting.com