Re: Rotary Spark Gap.
Sent: Wednesday, December 03, 1997 11:04 PM
To: Tesla List
Subject: Re: Rotary Spark Gap.
Could you elaborate on syncronous vs non-syncronous?
"Adjusted to the right phase?" (240 vs 120??)
"frequency at either 1800 ot 3600 rpm." What about using a variable speed
What is a "good" size hp?
240 vs 120??
I'm starting with a 15kV, 30ma neon. But hope someday to build bigger. The
RSG seems to be a big investment (the biggest for me so far..) . Can it be
used on a wide range of coil sizes? Would a airblast gap suffice for the
>It should be noted here, that non-syncronous RSGs are not recommended for
>neon/obit powered coils. Since you have a non-syncronous motor, you
>should really save this until you get into higher power projects. Neon
>sign transformer powered coils have been shown to work well and safely
>with syncronous gaps, which use motors that are synced to the AC line
>frequency at either 1800 ot 3600 rpm. The syncronous motor, once
>adjusted to the right phase, makes sure that there is always a chance for
>a spark when the voltage on the cap is at maximum, saving your cap and