TellTale circuit board with LEDs

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Keith V

Well-known member
Mar 26, 2008
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I have new circuit boards for the TellTale lights on the dash.
They mount in the original location and use LEDs instead of bulbs.
Since the old circuit was held in place by the bulbs and the connector a screw is needed to hold it together. I use a self drilling screw so it's pretty easy.

The connector is specific to using a flex circuit so it doesn't work with the new design
All lamp positions are marked so it's a simple matter to move the wires to the new connector.
The unused lamp is also populated so you can use it for whatever you want. You just need a switch to ground and it'll light up.

This is only the circuit board and lights, I'm still working on the transparency. I have prototypes but theyre not that great

Installation is simple:
1. remove old bulbs
2. remove connector
3. mount new PCB with 1 self drilling screw
4. cut and strip the wires and insert into new connector

As always they have a life time warranty ( my lifetime ).
if it fails, it I'll fix or replace it .

cost is $50, free shipping to the lower 48

Contact/Order/Info:
email at my427v8@hotmail.com
Phone or text at 763-732-3419
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Keith, Wondering if a dab of black paint or finger nail polish on top of the LED would tone down the intense spot and allow more diffused lighting of the label. It's a trick I've used in the past along with using more diffused lens LEDs.
 
that is an Idea I'll try that. The image shown is full brightness in a dark cab. The camera also makes it look worse than it is. I sand the top of the LED and that also diffuses the light a LOT.
It's nice having too much light though. my lights were terribly dark
The biggest problem I'm having right now is getting the black lettering dark enough. I may resort to screen printing it
 
that is an Idea I'll try that. The image shown is full brightness in a dark cab. The camera also makes it look worse than it is. I sand the top of the LED and that also diffuses the light a LOT.
It's nice having too much light though. my lights were terribly dark
The biggest problem I'm having right now is getting the black lettering dark enough. I may resort to screen printing it
I'm assuming you have already looked at something like this Selens Adhesive Diffuser. The various lighting manufacturers with whom I work use something like this to spread the illumination of LEDs to eliminate "hot spots".
 
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What's the current method for the black letters? I wonder how opaque the black-on-clear label maker tape would be? I've always wanted to try making transparencies like that, but haven't given it a go yet. Maybe a good brand like Dymo would be decent, though admittedly I typically buy the knock-offs.
 
I'm assuming you have already looked at something like this Selens Adhesive Diffuser. The various lighting manufacturers with whom I work use something like this to spread the illumination of LEDs to eliminate "hot spots".
Oh Perfect. Ive been looking for just that, but it's hard to know what works. I'lll order a piece and see!
 
What's the current method for the black letters? I wonder how opaque the black-on-clear label maker tape would be? I've always wanted to try making transparencies like that, but haven't given it a go yet. Maybe a good brand like Dymo would be decent, though admittedly I typically buy the knock-offs.
I have office max print a transparency, looks pretty good for the colors, but the lettering is too transparent. I have tried my labeler and it's also too light. I don't have a Dymo either !
 
One of the things I've noticed playing around with GM factory gages is that instead of black, they used Cyan as the print color (at least on the red transparency, like the "GEN" light) That red/cyan combo may be more "opaque" to the light. I also suspect they are screen printed, which may help...
 
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