Ideas for a capacitor bank for a tesla coil??

[RayRay1132]

I've built a few tesla coils before, one solid state coil and one flyback tesla coil, however I'm looking to build a new one. I have (as mentioned in a previous post), a surplus of old tubes. I also found a bunch (20-30) of old vacuum capacitors rated for 20kV, they are the adjustable/tunable type. Would these work well for a tesla coil?
Thanks in advance -Ray

 

[unclejed613]

usually with a TC, the amount of capacitance needed to resonate the primary to the secondary is kind of large. the resonant frequency of the secondary with thousands of turns is usually quite low... in the 10-50khz range. you need rather high capacitances to resonate a primary of a few turns to such a low frequency. however, you can probably get some ideas from **broken link removed** from around 1918. the capacitors used for primary circuits in transmitters of the time were not much different than what's needed for a TC... some of the spark gap technology might be useful as well