Tim;
Maybe modern electronics is similar to modern math????? But back in the 50's
when I went to school a series resistor was used to drop the excess voltage,
(5-6V) and the zener (in this case 7.5V) was placed across the load (parallel)
to determine the voltage applied. IMHO
Arnie Molloy 53 TD
Tim Economu wrote:
> Dear Bob, Jay, et al:
>
> If you want to use your 7.5V bulbs and have them last a long life, just add
> a 5.1V zener diode in series with the bulb to drop the other few volts. The
> bulbs will last the normal 2000 operating hours (their rating) and you will
> still get a nice bright bulb. The zener can also be purchased at Radio
> Schlock (misspelling on purpose!) and will be soldered into the circuit with
> the band end (cathode) toward the plus side of the battery on neg ground
> systems.
>
> But really, isn't the dim instrument good for all of us? And some LBC's have
> REOSTATS!! Wow modern technology!!
>
> Kind regards,
>
> Tim Economu
> '69 BGT mona
> email: economu@whidbey.com
>
> > It was previously said....
>
> Date: Sun, 7 Nov 1999 17:34:24 -0500
> From: Bob Howard <mgbob@juno.com>
> Subject: Re: Halogen dash lights
>
> Jay,
> I was one of the guys who contributed to the Radio Shack bulb
> correspondence.
> Experimentation with the 7.5 volt bulb (#50) demonstrated great
> illumination, so bright that the rheostat could be turned down almost to
> the miniumum
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