kenneth d lewis wrote:

> Larry;
>         A few years ago I made a batch of these for list members. I
> posted some text from those days on my web site. If there is enough
> interest I will look into making another lot.
>         These are custom, single purpose voltmeters so I could make them
> read any voltage instead i.e. charging voltage, standby battery reserve
> etc..

-------------------------- reply --------------------
It's a simple voltmeter.  I use, and everybody else also, the National
Semiconductor (or equivalent) LM 3914 "Bar Dot Display Driver".  Widely
available at your local parts store (not radio shack) or DigiKey etc.

http://www.national.com/pf/LM/LM3914.html

You can buy a "ready made" LED array with different colors. While driving
you can just glance at it with the corner of your eye and can get an idea of
what your mixture is.  Also good because it is visible at night.
Lots of the "Tuning" shops make these things, some sell for as low as $25
last time I looked a couple of years ago.  You can build one for less than
$10.  I may be able to dig up the schematic if anybody needs it.

Gary Lee
Calgary