Re: 5FP7 project starting with the focusing coil.
Thanks for the suggestion Dalek I will have a look at them, the magnetic control I seem to remember using in an old welding set many years ago, at least I think it used that principle.
I do have a Velleman kit PWM controller that has a blown output device. I was going to get that fixed and see if the frequency is fast enough to drive a LOPT and get HT that way.
But I would really like to build it all with a valve if I can using one as a RF osc placing it all in a screened box. Well that's the plan at present, it just takes time, patience and brains, I am starting to get in short supply of two.
Adrian
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