Terry,
 
Ok, here goes again. Hopefully these pics will come through right!
I'm labeling each pic and hopefully, the script will come through
with the right pics ;^) Her we go:
 
 
Complete tank circuit assembly
 
 

 
 
 Partial view of the rotary gap assembly
 

 
 
Primary .1 uFd, 50 kV Hipotronics pulse cap (green box),
primary coil tap (directly above pulse cap), and fan for
forced air cooling of the RQ stationary gap
 

 
 
Front view of electrical inputs and dedicated RF ground
 

 
 
Another closeup view of RF ground hookup
 

 
 
Another view of the tank circuit components. Variable speed
DC motor and it's 2 filtering capacitors at lower left and low-
er center, respectively. Also, note the 2" dia copper pipe
segments just to the right of the motor filtering caps and be-
low the primary cap.
 

 
 
A clearer view of the roary gap disc and tungsten carbide
electrodes and their associated hardware.
 

 
 
240/14400 volt 15 kVA pole mount distribution
transformer with a 15.6/18 kV rated distribution
arrester across the HV bushing outputs
 

 
 
Control panel
 

 
 
Metering of control panel
 

 
 
Top "steering wheel" control of the twin paralleled
240/0-280 volt @ 56 amp rated 1256D variacs for
control of the input voltage to the distribution
transformer
 

 
 
Miscellaneous: Wiring to the coil assembly from the
transformer and control panel via (2) 60 ft lengths of
75 kV rated x-ray cable with the outer mesh sheath-
ing grounded to mains 60 Hz ground. The 120 VAC
from the control panel to the coil assembly via ~50
ft. of armor sheathed 14-3 wire. The aluminum armor
sheathing is also grounded to the mains 60 Hz ground.
Ballasting of the input to the transformer through
the "guts" of a 225 AC amp stick welder set at 225
amps and submerged in Shell Diala transformer oil
inside of the tank of an old x-ray HV divider, inside control -
panel. Dedicated RF grounding is (3) 8 ft. long x 5/8" dia
copper clad grounding rods driven nearly all the way into
the ground with 4 ft. spacing between each rod and
interconnected with 4 AWG solid copper grounding
wire just below ground surface. Only the base of
the secondary coil is connected to the RF ground
via ~6 ft of #2-0 welding cable.
 
Electrical service a dedicated 240 volt/60 amp circuit.
 
Hopefully I can eventually get some spark pics up
soon. Fired on Friday night August 5 at around 9:45
PM (CDT) and achieved what looked like consistant
10 - 12 ft power arcs connecting to the ground. Didn't
have the time to get out the digicam and try to snap
some stills at this time. The top of the toroid stands
about 7' 8" above ground level.