# Re: Help in calculations

```On Mon, 29 Apr 1996 21:25:01 -0600, Tesla List
<tesla-at-poodle.pupman-dot-com>, you wrote:

>> Subject: Re: Help in calculations
>
>>From sgreiner-at-wwnet-dot-comMon Apr 29 20:38:30 1996

><< Big snip >>
>>

>I am setting up a second srg which will run in parallel with a the
>first gap. By adjusting the firing point of each srg separately I will be
>able to cause 2 firings per half cycle and I will be able to adjust
>exactly when each firing will occur. This may help to show if 2 firings
>per cycle will process more power. If it works, it will bw a simple
>matter to implement the extra contacts on a single rotor. I would still
>like a mathmatical solution to this problem.
>
>Skip Greiner
>
Skip,
rather than build a second srg put a second set of contacts on
change your reference plane from the aligned contacts to those closest
to being 90 degrees from them. Pick a point on your stator half way
between your 90 degree points and the 90 + 360/n points (forgot how
many you are using). Put these 2 stator points in parallel with your
original stator points, your now have twice the bps.

Also, thank your for your previous post on building a srg, I built one
this weekend. I used a 1hp 1750 rpm induction motor:( Bad choice, even
if I did have it laying around. One can dramatically see the slippage
between its speed and the mains frequency as a 4 second beat period!

Right now, it's working poorly with my pig, I think, because of poor
makeshift ballasting. I'm getting 2.5" power arcs on it.

After that poor result, I connected up my neon, 15kV -at-60 mA. using
only 1/2 of the secondary. 24" straight line arcs (measured) on only
7.5kV -at- 60mA !!!!!  I think you've got a winner here.

Regards,

jim
```