This is my first Tesla coil.It's not completed yet actually.
Now all I need is to produce constant sparks off the top of the coil without touching a screwdriver or a lamp! I've tried some aluminum foil on top of the coil but nothing happens.How can that be done?A spark off the top without touching anything?Any suggestions?
Here I've used two separate power supplies-a 6V powering the NE555 and a 12V powering the 2N3055 and the flyback.I've also used a COSMO 1010 (C1010) photocoupler to make sure that the NE555 doesnt blow from the 12volt supply.
The secondary coil has about 400 turns of 0.4mm magnet wire wrapped around a 3cm paper roll.The primary is 5 turns of speaker wire.
Here are the capacitors I've used:532J, 474J, .27J , .64J, .22J, 105J,124J, 822J/1.6KV.Most of the other caps are rated 400Volts I think.One or two 200Volts.
So ,if my calculations are correct then the bank should be about 4KVolts and 900 pFs.Or not.Maybe the bank is not good enough for spark on top.Maybe the bank is the culprit.
How to get the constant spark on top?
I know it has something to to do with resonance.Obviously there is no resonance here.