Shock Coil, High Tension Rhumkorff Coil
With no condenser produces horrible shocks. With 1 mfd condenser
produces small sparks and very painful shocks.
With 13 mfd condenser can power a small Tesla Coil when ran from 110V
solid state circuit (bypassing interrupter).
2 layers of wire for primary, 136 turns. 11 layers for secondary
coil, 3200 turns 34 AWG.
(C) Jeff Behary, 2011