Phetishboy
Well-known member
I replaced the burnt ones with two 1813's. If I have one in, there is a slight hum. If I install the second one, there is a loud as hell hum. If I have the burnt bulbs in, no hum. Also, with the new bulbs, if I coin it up, the hum goes away. WTF? Yes the coin door is grounded, yes 1813's run on 12V.

