Can someone explain to me the difference between filament vs. heater? I thought they were one and the same, just diff. nomenclature. Thanks Phil W2GE -- 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