I'd like to generate a pp tube amp design in the 30w to 60w range using materials on hand if possible.
Have some 5k ct output transformers coming this week. Have an assortment of amplifier tubes, but I wonder if it makes sense to use these new 3D21WB tubes I have, most of the other tubes on hand are used. Does anybody have any insight how to set up bias on this tube? I'm a newbie, and the tube is a 40 watt dissipation tube, I see load line charts with variations of G1 and G2 connections. Seems like I can get decent power, but also appears the voltage has to be pretty high, also the plate current, so I imagine the idle power would be atrocious. Thoughts from the experts?
Have some 5k ct output transformers coming this week. Have an assortment of amplifier tubes, but I wonder if it makes sense to use these new 3D21WB tubes I have, most of the other tubes on hand are used. Does anybody have any insight how to set up bias on this tube? I'm a newbie, and the tube is a 40 watt dissipation tube, I see load line charts with variations of G1 and G2 connections. Seems like I can get decent power, but also appears the voltage has to be pretty high, also the plate current, so I imagine the idle power would be atrocious. Thoughts from the experts?
I know that I have tested some 3D21WB and 7403 tubes in push pull triode mode and found power up to 100 watts. This all happened quite some time ago, so I don't remember the details. Some info can be found by searching for those two type numbers and my user name. I'll see if I can find something further tomorrow.