RE: SRSG questions

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>

If the motor case says 1725RPM, then I would believe that over what the
salesperson says.  You need 1800 RPM, and you won't get it from that
motor unless you do the grinding the flats on the rotor modification.

G10 for an RSG disk can be had from http://www.mcmaster.com/.  But
unless you're planning a very high power rig, you may wish to consider
the propeller gap configuration?  It's much easier to build and doesn't
require a disk at all.  My sync propeller RSG page is
http://www.laushaus.com/tesla/sync_gap.htm.  Terry Blake invented it,
see http://tb3.com/tesla/sparkgaps/index.html.

Regards, Gary Lau
MA, USA

> Original poster: ben eells <squeels2171@xxxxxxxxx>
>
> I'm trying to build a SRSG for my next coil and I've got a few
> questions. I've found from others examples that I need an 1800 or
> 3600 RPM synchronous motor. I called our local motor store and they
> assured me they had a 1/3 hp 1800 RPM synchronous motor. I went to go
> buy this motor and found that the stamp on the casing says 1725
> RPM's. The sales person said it was a synchronous motor built with an
> outer coil with spinning bars on the inside as opposed to the 2 coil
> system, so it appears he knows what he's talking about. My question
> is could I use this motor for a SRSG? My next question is what is G10
> and where can I get it? Apparently everyone uses it for their disc
> but I've never even heard of it. Finally, I noticed the recent post
> on power arcing of SRSG's but I don't know what power arcing is.
> Could someone explain please? As always I appreciate the help.
>