[s-cars] outside temp illumination

[Bob Rossato]

When I did mine I decided to use a 14V version (CM8111) instead of the 12V
version (CM7219) for longer life since the alternator puts out ~14V anyway.
The bulbs are manufactured by Chicago Miniature Lamp.

http://www.chml.com/assets/databookpdf/2-33.pdf

Both are rated at 0.150 MSCP at their respective design voltages so the 12V
version will probably be a bit brighter but won't last as long since it is
being overpowered.  But most folks have used the 12V version since that is
what most places carry and I don't recall hearing anyone having to go back
in for another replacement, at least over the last 2-3 years, so I may have
gone for overkill with the 14V.  The 14V seems bright enough in any case.

Bob

> -----Original Message-----
> From: s-car-list-bounces+bob.rossato=att.net at audifans.com
> [mailto:s-car-list-bounces+bob.rossato=att.net at audifans.com]On Behalf Of
> Robert Myers
> Sent: Monday, December 13, 2004 6:08 PM
> To: Bill Clancy; s-car-list at audifans.com
> Subject: Re: [s-cars] outside temp illumination
>
>
>
> You can get essentially the same light at Radio Shack.  I don't have the
> part number but it is the smallest grain of wheat bulb they sell.  Comes
> two to a bubble pack.
>
> At 01:44 PM 12/13/2004 -0800, Bill Clancy wrote:
>
>
> >If anyone has noticed that their outside temp indicator no longer lights
> >up orange, I know how to fix it.    I managed to find the miniature lamp
> >at an electronics supply site.    You have to take it apart and
> de-solder
> >the old lamp and solder in the new one.
> >
> >This is the lamp that works.
> >
> >www.digikey.com   part #  CM7219-ND
> >
> >It's a 12 volt, .06 Amp (.72 watt) miniature lamp, measures 3mm x
> >5mm.   costs .49 cents plus 1.98 shipping.   The Audi dealer
> want $195.00
> >to replace the entire module.
> >
> >...my small contribution to the group.
> >
> >-Bill