Thanks I'll look forward to your findings.
...Art
On Mon, 27 Oct 1997, Ross MacPherson wrote:
> At 11:26 AM 10/27/97 -0500, you wrote:
> > Question would one of these dimmers work in place of the headlight
> >dimmer? If so they would be a lot cheaper, I've been planning on going to
> >Radio Shack to see what they have but have not done so yet.
> >...Art
>
> Art.
>
> Sorry, no. The dash light circuit uses a rheostat. It's expensive because:
> a) it has to be big enough to disipate the heat generated by the
> resistance (see my earlier post) and,
> b) you can't buy one just anywhere.
>
> The lamp dimmers internals are designed to work with household AC supply. A
> similar circuit suitable for the dash lights could be put together easily
> (and cheaply) by the electronicly skilled for only a few bucks. Because the
> car's supply is DC an SCR must be used instead of a Triac. This bares
> looking into. I've often contemplated a wiper delay module for early cars
> and this is another good idea I'll have to contemplate.
>
> I will soon be removing the dash from my GT and when I do I'll do some
> serious research into a suitable replacement for the dash light dimmer. I'll
> report back to the list when I find anything but don't hold your breath (I
> have to put the TC away for the winter first)
>
> Cheers,
> Ross MacPherson
> 1947 MG-TC 3528
> 1966 MGB-GT
>
>
|