Poor mans SRSG? Adjusting SRSG without Variac?

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

Original poster: "Bill Vanyo by way of Terry Fritz <twftesla-at-uswest-dot-net>" <vanyo-at-echoes-dot-net>

Without access to a machine shop, is it feasible to do the motor
modification to convert an AC motor (1725 rpm) to salient pole
synchronous (1800 rpm)?  What's the minimal set of tools required to do
the job?

Also, if I did manage to do the modification, is there some way to get
by without a variac, as far as adjusting the spark gap is concerned?

	Thanks, 
	Bill Vanyo  (planning first coil)