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Cobra 29LTD Classic brt/dim switch wiring
- Thread starter Repo87
- Start date
Are you sure they bypassed it? If they replaced from an incandescent to an led, it may be connected correctly but the resistor controlling the dim may need to be increased.
Most shops will use a LED in place of the factory incandescent bulb these days. A LED will draw around one-sixth the current the old bulb would pull. Makes me wonder if a 200 ohm 1-Watt resistor wouldn't work, wired in parallel with the LED. Would create a current drain roughly the same as the old bulb.
Haven't tried this.
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Not 100% sure, the brt/dim switch does nothing now. When asked, the shop said they wired it directly, that "most people like it that way". I didn't want to $30 in shipping fees to have it fixed.
I might just leave it be until i figure out what echo board i want to put back in the radio. When i pay a shop to do that, have them fix the meter bulb to brt/dim correctly. I seen one shop that uses a nice LED bulb with no hot spot but the shop wouldn't say which 5mm led bulb he uses.
Mine has a hot spot for bulb at the very top when you look at it.
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The clear "bullet nose" shaped LED has that hot spot. The rounded end is a lens. We used white LEDs with a flat front for a while. They have a wider dispersion and looked a lot better. Finally found some diffused white transluscent LEDs. They seem to disperse the light best of all. Can't remember where we got them.
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I bought these, it's a little better but still a spot at the top middle.
I rub the led lenses and sides with 600 grit sand paper to flatten and diffuse the light. Seems to do the job well.
