Sounds like the transistor is fried check it for continuity use your multimeter.
I would really like if someone could come up with another way of saving the transistor while tuning for resonance.
I froed another 2 transistors today(tip35c) I cannot even try and tune for the hex filer I have some parts on order though I was thinking.
Would a plasma ball 110av 110v be a better option than neon bulbs??
Please any suggestions as I have 3 x sets of 7 neons in parralel so thats 21 neons and I still cant protect the transistors.
maybe you have same probleme as i did with my fan, i disconected the secon wire from original winding, i hook it up and it was working. But every time i tried to tune it with neon my transistor did burnd. After some mesuremnet i realised thats al 4 windings were conekted. I rewind it and everything works fine now.