Ouch, Tim!
Did I read your post right? You ran your SRSG hot with no secondary coil in place? That's akin to smashing your accelerator to the floor with the transmission in neutral! Without the secondary in place, you should have a "dummy" load in place. I have heard of other coilers using one of those 500 watt quartz bulbs in place of the primary coil for this purpose. I fear you may have damaged either your primary capacitor(s) or the transformer from the symptoms that you site. I would start with the transformer, since NSTs are inherently a bit fragile. I am sure that others would have more experience and be more qualified to comment than myself on this matter, but that's my initial take on it.
David Rieben
Sent from my iPhone
> On Mar 26, 2014, at 3:25 PM, Tim Flood <tfloodrr@xxxxxxxxx> wrote:
>
> Could really use some help.
>
> Just completed a new 15/60 NST powered coil with a SRSG. With the tank
> circuit completely wired and the secondary removed I thought why not check
> the operation of the rotary gap. The first time I powered up it ran fine,
> firing smoothly up to the max variac setting.
>
> Subsequent power-ups resulted in the gap sounding like gun fire. The safety
> gap on the SRSG is firing, the arcs at gap alignment vary in intensity and
> there are smaller arcs running around the conductor ring on the disc.
>
> The rotor is 5" diameter with four 1/8" carbide electrodes turning at 1800
> RPM.. There are two stationary electrodes on the front side. Electrode
> spacing is .030" per gap.
>
> Thank you,
>
> Tim Flood
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