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Registered Member #3343
Joined: Thu Oct 21 2010, 04:06PM
Location: Toronto
Posts: 311
The Project is the construction of a 0.001microfarad x 10kV capacitor. The capacitor is charged with 5 ~ 6 kV and discharged through a air gap to a 5 ~ 7 microhenrie coil. The rate of charging descharging is 120 times per second. I have done such capacitors (no oil immersion) using 2-3 mm flat glass (soda window glasses) and kitchen aluminun foil, however I am looking for new ideas and construction details. Thanks in avance, Newton
Registered Member #30656
Joined: Tue Jul 30 2013, 02:40AM
Location: UK
Posts: 208
You could probably buy off the shelf for about $10.
Look at what the tesla coil guys do for MMCs, 5-10 1-2kV caps in series to would easily do the trick, and you won't need to pay more than $1 each for them.
Edit: yeah i know it's not as fun when you buy them off the shelf, but they do work better. For reference I did once make a ~2nF 10kV+ cap by using polypropylene buckets and tinfoil.
Registered Member #3215
Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780
vinyl tape like the ones made by MacTac are quite good at it...
rerolling your capacitor on a fiberglass core with vinyl-foil-vinyl-foil would make a nice axial capacitor if each metal foil electrode goes out of its own side
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Capacitor Construction
