When looking for parasitic resonances in a new amp where do you grid dip it. I know about the Plate blocking cap. but where else. I have a Millen gdo guess that will do it. Regards, Bob -- 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