> >A "regulated" screen voltage does not make a perfect linear amplifier. >Examine the "Ultra-Linear" (also known as the Williamson) amplifier design -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm