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first. I have High Voltage PS completed, but it have only half - milimeter sparks... will it be enough to power tesla coil? it has very high internal resistance... (for now)
My tc is on left :)
second.How many volts it is if it sparks like that? I want to build MMC, and i dont know for what voltage i must build it for
Registered Member #952
Joined: Mon Aug 13 2007, 11:07AM
Location: Finland
Posts: 388
It can be pretty hard to get a spark gap coil working efficiently at only 0.5-1kV primary voltage. The spark gap must be very small. If your power supply is AC, I would suggest to put a some kind of CW multiplier with a limiting resistor to get the voltage higher (at least 4-5kV)
As I already said, the voltage is approximately 0.5kV-1kV assuming air dielectric strength is 1kV/mm.
Registered Member #580
Joined: Mon Mar 12 2007, 03:17PM
Location: Melbourne, Australia
Posts: 410
i only managed a very tiny spark length from the top of my tc ran from a 10kv flyback. However the increase in frequency (i assume it was because of this) caused an interesting effect where the whole output wire would 'glow'. I found it difficult to set up my spark gap reliably even at this voltage. With 1/20th of the voltage i doubt it would do much more then light a neon directly connected to it
i build smaller one, from injection (that thing with which doctors take you blood, but not nail... sorry for my english : )
i post photos as soon as i get it to PC, sparks are 1cm long (longest was somwhere about 1.2 cm)... i have only DC voltage... i have generator 700V and multiplier 10x, but i think it is not working at 10x, because i could get longer spark at spark gap... but it works and i am happy :)
and with that damn multiplier frequency rapidly decreased to somwhere about 2-3Hz (not khz)
so, is there some chance to have better voltage? (something with that resistor between 700V trafo and multiplier) ???
btw, i had some mmc builded time ago, it was on 6KV, so i used that one, it was from PSU PC now i have job to run the bigger one :)
but i have only 20V power supply, which seems cant get 1A at 20V... it is sucking too much A (2-3 i think, but when i turn ot on, Ameter cant view it) and i dont know why... what can i do? Thanks for all answers
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TC noob
