In a message dated 8/19/00 2:19:17 PM Pacific Daylight Time, tesla-at-pupman-dot-com writes: > Hello > If I have a rotation gap,and my line frequency is 50 Hz,the optimal > breaks-per-second rate would 100.Is that right ? > > Tom Tom, YEs, using a synchronous rotary gap, 100 bps is probably best at 50 HZ. I've found the best overall efficiency at 120 bps in my 60Hz system. JOhn FReau