I should have mentioned the amp uses (2) 3-400 tubes, 2900 volt 1 amp supply. Gary VE4YH -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm