DIY_EFI Digest V5 #663

[Carter Shore]

On Wed, 11 Jul 2001 23:48:25 
John Dammeyer wrote:

>I've never been able to measure the open circuit 
>voltage on the output but obviously the turns ratio
>on the coil determines >that ultimately.

I use an old TV HV probe, modified with a BNC
connector, and a flying lead with a ground clip. Hooks
right onto my O-scope.

Lot's of interesting things can be observed.

Disconnect one of the plug leads on a waste spark
setup, watch what happens to the other side.

Carter

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