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Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
This is my power supply for a Tesla coil I am making for the physics dept at the Uni of WA.
I have a 12 kV, 110mA NST which I have crammed in to a microwave oven (MO) shell. It uses the original MO mains interference suppression, 5V supply, light, fan and lock out switch when the door is opened. I have added a solid state relay, large indicator lights, switch and there is a remote on switch with a flashing red LED on a 6 foot lead. There is a mains outlet which is switched which can run the fan for the coil and also have an optional variac inserted. There is an inrush limiter and a few MOVs in different areas. I have included a 3.5mm headphone type socket which requires a shorted 3.5mm plug to be inserted before the unit will activate. (in lieu of a keyswitch). There is a Terry filter of sorts with 360 ohms 15W and a 440pf 40kV cap on each leg of the HV . There is alo similar circuitry inside the Faraday cage to the coil.
The fan has a fully shielded MO interference suppression circuit in a commercial "Lightning Protector unit" which I have modified.
HV leads are heavy 75 ohm cable with shield present.
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NST supply in MO
