Re: Spark gap jump on CD-11’s

[frankr]

When I am working on a motor, I consider 1/4" open air spark gap as being good to go. Yeah, I know, some people look for 5/16 or even 3/8. It should be noted that the shape of the spark gap points makes a big difference. It is a lot easier for a spark to arc between two sharp pointed electrodes than two of another shape (round, flat, whatever). So that needs to be considered when evaluating spark by gap width.