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1. 06:19 AM - Re: Re: tachometer (Ernest Christley)
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There are tachs that install in series with the coil.=C2- One of those wo
uld be a very bad idea, and would concur with what you say.
However, your statement concerning the ones that sense the current bounce o
n the negative electrode does not concur with basic electronics.=C2- Unle
ss a bad tach was somehow able to burn the short wire going from the coils
negative terminal to the firewall, there is nothing it could do to affect t
he coils operation.
The diesel tachs are:-more expensive-require extra wiring through the firew
all-mounting sensors with a fairly tight tolerance to the flywheel or some
other spinning part.
On Thursday, October 15, 2015 12:02 AM, John Pitkin <john@cedarcreekru
n.com> wrote:
un.com>
Attaching anything to the negative side of the coil other than points and a
capacitor adds another failure point. If the tach goes bad it takes your i
gnition with it.=C2-
Electric tachs just need a simple trigger. Look or search for diesel tach s
ensors they have no ignition and therefore must use a sensor. It's nothing
more than a small coil , a magnet, and a Hall effect transistor.
[quote="echristley(at)att.net"]I've got a Van's tachometer that was in th
e partially completed project I bought.=C2- Has anyone used one of these
by tying the sensor wire to the negative side of the coil?
> [b]
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=447954#447954
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=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
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