Reply to "Williams Bud Car upgrade to TMCC"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

I suggest 1K resistors for the bi-color 3-lead common anode LED. Put the 1K resistor in each leg from the two TMCC light outputs, don't try to save a resistor in the anode lead, there are sneak current paths if you happen to drop into conventional and get AC on the light outputs that will kill the LED. Don't ask me how I now this.

5/6/161:34 PM

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