GO GO tiny coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "J Dow by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jdowphotography-at-hotmail-dot-com>

Hello all
I�m working with a mix of coil guts and parts from a few coils I�ve made.
Hear are the specs:
Sec coil: 3.5� by 27�   24 awg  on gray thin wall PVC
Primary Coil:
Flat, 16 turns � copper tube. Windings are spaced �� with an adjustable 
outer winding tap. About the size of a pizza.
Spark gap:
�SRSG� or Synchronous Rotary Spark Gap. It discharges the Capacitor at 
120BPS or Brakes Per-Second. It consists of a small 1/25 hp 1800rpm motor 
that spins a Plexiglas disk with 4 electrodes.
Capacitor:
16kv -at- 0.0692uf  �MMC� or Multi Minnie Capacitor. This is an array of 36 
Cornell Dubilier capacitors. Each cap is rated for 2000V -at- .15uF there are 4 
springs with 9 capacitors each.
Power transformers:
2, 12kv/60ma NST�s or Neon Sign Transformers banked for 120ma with PFC or 
Power Factor Correction capacitor to smooth out the current draw. On the HV 
side of the transformers is a serge filter good to 240ma 15kv to protect the 
transformers from over voltage.
Control cabinet:
Two arming switches for mane coil power feed. A �dead-man� switch controls 
power out to the coil through a 15 amp variac (performs like a dimmer 
switch). The coil is fused to 15 amp with a 15amp fast blow fuse.

The pri and sec coil are from my much smaller coil and the NST�s cap and gap 
are from my big coil.  the neat thing is that with a really big top load I 
can get 4� sparks.
	Recently I added 4 more electrodes to the SRSG and tried it at 240 bps.
Not so hot results. Then I reduced the MMC buy half and with added top load.
It now puts our some very very nice 4.5�-5� sparks and it sound nice to at 
240 bps.   The tiny sec coil with such a huge top is making me thing of a 
great Bob Dylan song �brand new leopard skin pillbox hat�.
With the performance doing so well with just this tiny sec coil I�m looking 
forward to the new 4� pvc sec coil.

And SRSG is the only way to go!  (haven�t tried the triggered gap yet)

Happy 4rth everyone!

Read you later
Josh