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Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
I made a voltage doubler for a MOT for my 833c vttc. For some reason it will not work. All of the diodes and cpas have been previously used and they all work. I have it connected with the capacitor connected from the high voltage to the diode which is 'facing' the capacitor and the other side of it is to the core on the mot. The high voltage output is the terminal on the capacitor that the diode is connected to opposite the terminal of the cap that is connected to the high voltage. I cannot get so much as an arc from it and the diode heats up. I have tried two different capacitors and diodes..
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
With a diode-cap MOT doubler you'll get approx. 6kV peaks, and the output swings back to 0V between peaks. You will not be able to stretch the arc, and yes the diode will get quite hot as it runs more current than it was designed to. So if you can get ~3-4mm sparks from it, I guess its working good.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Dr. Kilovolt wrote ...
With a diode-cap MOT doubler you'll get approx. 6kV peaks, and the output swings back to 0V between peaks. You will not be able to stretch the arc, and yes the diode will get quite hot as it runs more current than it was designed to. So if you can get ~3-4mm sparks from it, I guess its working good.
I could not get a spark and it would not run the coil at all.. I tested the coil straight from the mot so i know it works but i know that the doubler doesn't.
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Wierd voltage doubler problem.
