the 'eyelet' ground under the thumbwheel
screw holding your gauge in is the electrical
ground for the lights in the gauges. The tach
ckt needs it's own good 'power' ground.
Yes, you have the terminal identified correctly.
V+ and ground to power the ckt, and the round
terminal is the coil connection.
Paul Tegler
ptegler@cablespeed.com
www.teglerizer.com
----- Original Message -----
From: "griffco" <griffco@griffco.ca>
To: "spitlist" <spitfires@autox.team.net>
Sent: Thursday, April 17, 2003 10:41 AM
Subject: Fw: Electric Tach
> I'm converting a MK IV wiring harness to a 1500 car, and need to know
about
> the connections on the back of an electronic/electric tachometer.
>
> There is a flat spade (Lucar) connector - I assume it gets +12V.
>
> There is a round (bullet) connector - I assume it comes from the coil -
> terminal.
>
> There is a small flat earth connector on the casing - obviously earth -
but
> wonder why when the casing is earthed via a black wire connected to the
> mounting bolts. Insurance?
>
> Can anyone confirm these connections?
> Thanks, Fred
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