![]() ![]() Would anyone be willing to lash one up IRL and run it with say 12v (220 ohm top resistor) and see what results they get and how much the transistor heats, power draw and arc size? Makes me think I'm going mad when people on youtube run these and get good results from the get go. Same but with a 470nF capacitor across the 22 ohm resistor. Looking at the datasheets the 2n3055 appears to have a higher gain than the MJ15003 too so even more oddities there. I also tried simulations too and whilst the 1uf across the lower resistor in the simulation worked it doesn't appear to help IRL. With a 33uF non-polarized electrolytic capacitor across it the current draw shot up to over 5 amps with only a moderate arc power increase and the capacitor got hot fast. Thanks, I tried a 470nf capacitor across the lower 22 ohm resistor IRL and still the same, I even fiddled with the resistor value and had it down to 13 ohm at one point but it didn't really help except made the arcs a tad longer and the circuit consume more current.
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