Not done it but heard of it elsewhere. You'll need to power the tach from a
smoothed supply i.e. a battery, and run a coil in series with the inductive
loop and charger. You should be able to test a later, voltage-triggered
type as well but with the charger and coil in series and with the tach
signal wire to the +ve and its ground to the -ve.
----- Original Message -----
From: "Don Malling" <dmallin@attglobal.net>
To: <mgs@autox.team.net>
Sent: Thursday, December 19, 2002 1:35 AM
Subject: Testing Gauges
> List,
>
> Has anyone tried to test an early 67'ish tachometer using a battery
> charger per the following...
> http://www.mgcars.org.uk/electrical/calibrattach.html
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