Thanks for the clarification Randell. I wrongly though the question was about TR3 lights. I am going to experiment with LEDs in my TR6. Switched to LEDs in dash and very happy. Are you neg ground with your TR3 to make the flasher module work on the centre light, or did you design your own? I bought a flasher module on ebay some time ago to use with a third brake light I want to add to my TR6 but it is neg ground only. Having that centre light flash would be nice on the 3. I seem to recall you have all three rear lights working as brake light too. Cheers, Mike
I am negative ground; but the flasher is my own design and I could have just as easily made it positive ground (I think). My goal was to have everything fit inside the lens, so there wouldn't be room for a module anyway. The flasher is just a NE556 dual timer IC with some associated resistors and capacitors so that one timer section does the quick flashes, and the other timer section disables the first after about 5 flashes. Then the output controls a power MOSFET (from the junk box) which in turn controls the LEDs.
Another change from stock, the red LEDs are mounted to an aluminum plate that divides the lens front/rear. That way, the license light (white LEDs) does not show red to the rear.
I do also have the corner lights working as both stop and turn. That was done earlier, with relays mounted under the dash, so I just left it intact (except for adding a resistor across the center brake light).
This isn't a very good photo, as you can't really see the differences in brightness, but I was trying to compare the LED center light to the wife's Toyota. I need to find a way to override the automatic shutter speed on my camera (should be much easier on the new camera, but I haven't tried it yet).