[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
I am about tuning my CW, DC driven VTTC = Vacuum Tube Tesla
Coil. V plate = 10 kV, primary coil = 36 turns of AWG 7 stranded
wire on 6" form, secondary coil = 1300 turns of AWG 26 on 4"
form, toroid 1" x 5"
Today the secondary was hit for the 3rd time by a flash from the
primary, starting under an angle of about 45 deg from the
uppermost turn. Luckily the secondary was not fried, but in order to
avoid this, I'm about to rewind the primary to a 8" form.
Now my question to the experienced coilers:
To protect the secondary furthermore, I'm intending to add a PVC
or acrylic (appearance) tube between the two coils. I could use a 5"
tube (wall 0.15" thick), which is closer to the secondary or a 6"
tube (wall 0.18" thick), which is closer to the primary. Which
solution would protect my secondary best taking into consideration
the E-field distribution?
Thank you for your advice,