re: the 153IR controllers
- in two of them the two left hand terminals are labeled A & U the four terminals on the right are labeled “AC power, AC ground, NO, & NC.”
- in third (1961 I believe) the two left hand terminals are labeled “power supply.” The four terminals on the right are labeled “Com 2, Com 1, NO, & NC”).
smaller fish. (Which hopefully I will have soon caught)
I am currently watching uTube videos about multimeters in order learn how to set the the voltage on the DCAC converter and check my track for continuity in my wiring.