Mini Tesla Coil Page
Mini Coil and pickup coil.
 I made this Mini TC out of leftover wire and whatever else was handy.
 It would be a great little test rig for a solid state supply.

Frequency calculations by WINTESLA.
Specs:
Secondary:  2.0" X 10"
approx. 1025 turns with #34 AWG magnet wire
wire length:                        535 feet
Res. Freq.:                        760 KHz
Res. Freq. w/ Torroid:        462.1 KHz
form material                     1/4" plexiglas

Primary:    11 turns, #12 solid magnet wire
15 degree conical
Inside diameter:                3.75"
Spacing:                             .150"
11 turns total           tapped at 9.5

 Torroid:                       4" X 6.25"
Capacitance:                      5.65 Pf
NEW
Step up transformer:   9500 volts    100 milliamps

Cap:        .021uf   16000 volts        MMC

Gap:      Sync rotary

Protection: 2 ferrite rod chokes on output of transformer.
             Corcom EMI/RFI line filter on input of transformer.

Line switch:       10 amp 240 volt solid state relay
Misc. photos 2 inch coil:
Latest test below using 2" X 10" plex secondary and sync rotary gap
 2 inch coil with micro SRSG. Best arc so far is 18.5".
 Note the direct strike to MMC caps on left. There were many strikes with no ill effects to caps. 
The sync gap really makes it come alive. This was the first test. Some thicker wiring is needed.
This one shows a direct strike to the rotary spark gap. 
The bottom half of the secondary is liberally gooped up with spray silicon conformal coating and hot melt glue. 


Old photos
The primary is made of 12 gauge magnet wire, I had in stock. 

The two coils have different size torroids, giving them different resonant frequencies. I should have matching torroids for best performance.
 It's a small one but, I didn't skip the protection chokes or RFI filter. There is a 10 amp magnetic breaker on the control box. The solid state relay is next to the spark gap on right. The rolled cap is on the left.