Magneto Buzz Box

[CaravanPilot]

Hello All,

I am looking for a wiring diagram for a build it yourself magneto timing box.

I build one a long time ago in A&P school and now I would like to build one again and I have looked high and low on the internet for one and no luck.

Yes I know it is cheaper to buy one but I just would like to build one.

Anyone, please help???

Thanks Ken