Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by jads57, Jul 13, 2008.
What should these tubes be biased at. I have a Heriatge Colonial I`d like to try them in Thanks!
60% to 65% dissipation
As to what attributed tube wattage rating? 25W? 30W?
I have a bias adjustment in the back of my Heritage Colonial. Should it be 35ma or 50ma for example?
What's the plate voltage?
It depends on the plate voltage. For example - 35 watt tube divided by,say 425 plate voltage = 82 ma max X 60% = about 49 ma.for 60% idle dissapation. At 450 volts it would go down to about 47 ma and so on... Bob
Thanks Bob, I`ll check out the plate voltage w/Paul C. who designed the amp.