8/7/17 – Another Hardware Change

I got 22 of the 32 annunciators converted to the new relay board. With this board, I was driving the annunciator lights (6.3 v screw base bulbs) with 5 volts. I turned on all 22 lights at once and noticed a voltage drop on the Power Distribution Board. Looks like I was starting to overload the power supply again. But… I had already ordered 12 v bulbs and I wasn’t using any of the 12 volt lines from the power supply so made the switch.

Everything now is wired up using 12 volts for the Annunciator lights. No voltage drop on the 5 volt line. Still need to dress up the wiring on the Annunciator Relay board.

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