kc5uta
Member
I want to try to build an amplifier. still not sure what band, but I am leaning to HF. But maybe also vhf. What I do have so far is a transformer I picked up at a hamfest. multiple voltages, secondary out 700volts +/- , with another at 130 v or so +/- and what is obviously a filament voltage at 6v +/- .The transformer itself is about 60lbs or so 110v primary. So far to test, I rigged up 10 100 watt bulbs in series to the high side, and it lit them quite nicely. The transformer didn't even warm up after 5 minutes. You could really feel the heat from the lights though! So my big question is........what tube would be "optimal" with 700volts or maybe with a doubler to 1400"ish" or maybe try a DC-DC boost instead? Finding a straight forward answer to what would be best is difficult at best. Thanks ....Dave