[Viewmaster]

Hope your project goes well, Sean, especially with Al's sparky experience to help you.

I doubt if I can help except to say that a variable HV capacitor across the tank will quickly find the sweet tuning spot. Then it can be replaced by doorknobs etc to suit.

I used 110mm white drain pipe for my secondary and an 150mm acrylic plant pot holder (ebay) for the tapped primary coil. I bought 3 core flex cable to wind the primary. Cores were split to make one long length.
(brown,blue,green)

I did have a big flash over but put thin flexible PVC sheet to 'separate' the coils,
which cured it.


If you ever wish to audio modulate it (in a mad moment ! ), your power supply will have to be DC of course, as all mine are.

Look forward to hearing more from you in due course.