Dave,
I have used one for a few years. It's one of those cheap green ones you find a your local swap meet for a couple bucks. Mine is attached to the neg term.


Craig

My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.