Well it certainly won't be a toy due to the 1m glass blade ;-) But
thanks for the hint, I know what you mean. But these have two
"outputs" and I do not know if only connecting one of them will work.
If you decide to roll your own, this transformer looks like a possible
candidate:
http://www.goldmine-elec-products.com/prodinfo.asp?number=G16821
As it happens, an experimenter has derived its parameters, which could
save you some time:
http://softsolder.com/2009/02/16/finding-transformer-pi-model-parameters/
For home-made plasma spheres (which have similar power supply
requirements), many people use television flyback transformers. You
need one without a built-in HV rectifier (you need AC output).
Normally, I'll wind another primary (10-20 turns) on the core and use
a two-transistor blocking oscillator or just any old oscillator and a
power transistor to drive it.
Sam Goldwasser's Repair FAQ has some suitable circuits, along with
useful discussion on operation here:
http://www.repairfaq.org/sam/hvinvert.htm
- John
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