X-Mozilla-Keys:                                                                                 
Jeff Spitzer wrote:

At 03:08 PM 8/12/99 -0700, you wrote:

A most scopes will trigger off the wave form Jeff.
No need of an external trigger signal.

Paul Lamar

Yes, but the scope won't trigger off the same lobe each time the shaft goes
around.  If all lobes are the same, no problem.  If they are different then
you'll have no idea what's what as it jumps around on the scope.  Remember,
I've done quite a bit of this :-)

Jeff Spitzer

Did you set the engine on top dead center before you hit the starter
and the scope sweep time to 10 seconds? :-)

Hey! I admit a top dead center external trigger would be nice :-)

Paul Lamar
 
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