Re: need suggestions for general sizing in a multi coil setup

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Tesla729-at-cs-dot-com>

In a message dated 6/14/01 1:18:09 PM Central Daylight Time, tesla-at-pupman-dot-com 
writes: 



>
> David, 
>
> When I was using the asnychronous rotary gap, the coil performed well but 
> did 
> not run very smoothly - kind of hard to describe - large primary voltage 
> and 
> current fluctuations and occassional popping sounds from the rotary gap.  I 
> use a .05 ufd primary cap.  It did like high break rates, the higher the 
> better the performance. 



Hi Ed, 

 From your description of your coil running asynch, I would sware 
that you were sneaking a peak at mine in operation :-) My coil 
runs almost just like that, complete with the occasional popping 
sound from the rotary gap. This is especially true for the first 
few minutes of operation after dressing the all-brass stationary 
and flying electrodes to smooth them up and remove the oxidation. 
Maybe someday soon I'll get up the nerve to rebuild my rotary gap 
for synchronous operation, it's just hard to tear down and rebuild 
a system that already gives good performance (8 to 10 ft spsrks 
in a 12 X 20 shop). And I'm a little skittish about trying to take 
an electric motor apart and grinding down the rotor and then putting 
it back together. I subscribe to the old saying, "If it ain't broke, don't 
fix it" :-) 

David Rieben