Re: rotay spark gap

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tb3-at-att-dot-net>

Hmmm,

If you stop the rotor and line up the electrodes, does 
the TC fire at a high rate with small bang size (tight 
gaps) compared to your static gap, or is it slow and 
erratic with big bang size (loose gaps).?  If it is 
having trouble with the rotor not going, it will have 
more trouble when spinning.

I typically make the gaps as close as possible.  Then 
the srsg works at low power/voltage levels for tuning or 
for slowly bringing it up to full power displays.  

Your comment about it working when the motor slows down 
implies that the phase may be set near the AC zero 
crossings instead of the the AC peaks.  Did you try 
adjusting the phase?  

Terry Blake
> Original poster: "colin.heath4 by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
> <colin.heath4-at-ntlworld-dot-com>
> 
> hi all,
>         iv ran up my srsg today and had no joy really .
> i only got it to fire when the gap slowed down after shutting down the
power to
> the motor.
> could this be due to the gap between the post and electrode being too wide
> im using a mot supply with voltage doubling
> any help will bew much appreciated
> many thanks
> colin heath
> 
> 
>