Thanks,

This is a big help.

Roger



"Darrel Toepfer" wrote in message
...
Roger wrote:

I am looking for plans to build a Mag timing light with the buzzer that
changes pitch. I remember seeing plans in a Magazine. Maybe Sport
Aviation.

From my reply to your post in rec.aviation.piloting:

http://www.rst-engr.com/kitplanes/KP9910/KP9910.htm

Not sure about the pitch changing buzzer though...