Yeah, me too.  I would run it up to the rpm where it cuts out to watch the
tach,, and it didn't jerk around or anything.  I didn't know if there was
maybe something in the circuit to smooth it out so that I don't see the
signal drop, but it doesn't seem like there is.

Jonathan

On Wed, Apr 13, 2011 at 5:18 PM, David Beierl <dbeierl@attglobal.net> wrote:

> At 12:33 AM 4/13/2011, Jonathan Poole wrote:
>
>> -the tach doesn't drop or jump erratically when the engine cuts out which
>> may contradict my suspicion of the pertronix unit?  The tach is out of a
>> '91
>> Vanagon and wired up in typical fashion off of the coil.
>>
>
> Been scratching my head - to me this says that at least you're not getting
> a hard fail of the primary circuit at that rpm, there's enough of a pulse to
> trigger the tach.
>
> Yrs,
> d
>