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TR2/3/3A Light show in the turn signal indicator bulb

jfarris

Jedi Trainee
Gold
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1956 TR3, negative earth, all light bulbs are LED.
When I converted to LED turn, brake and tail lights, I did the mandatory change to an electronic controller for the turn signals.
The turn signal indicator light on the dash was always too dim to see in the daylight (who drives at night in these cars).
So I also changed all of the dash lights, except the generator light to LEDs.
With the engine running and no turn signal activated, the turn signal indicator bulb in the dash displays a dancing electric light show, very dim, but constant. Some current is sneaking through somewhere. I have not changed to a different flasher controller. All the associated grounds appear to be good and the turn signals front and rear work normally.
I could go back to a non LED bulb and look for a brighter one.
Any ideas?
Thanks!
 

Gliderman8

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When I made the change to LED's I used two diodes for the turn indicator LED bulb. I'm guessing that the diodes will keep the errant voltage from getting past.
IMG_2586 2.jpg
 

Sarastro

Obi Wan
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The turn-signal indicator is pretty simple, just a wire from a special terminal on the flasher to the LED lamp. My best guess is that (1) the flasher and lamp are not compatible in some way, or (2) the flasher is defective. Beyond that, standard advice: make sure that the connections and grounds are good.

If all else fails, Elliot's suggestion, above, should work well.
 
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