Is it possible to operate tubes in class E, assuming that the HT can be switched at a RF rate? For CW only. Ian, ZS6BTE -- 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