[MrE]

Just addressing a single issue in this thread, wire tracing. We probably all own multimeters with the continuity test, but when we're dealing with 40'+ it's not necessarily the easiest way to test. I recently had an issue at my house where one of my electrical circuits was only partially working. I attempted to purchase a Klein Tools ET450 which includes a wiring tracer that works with energized circuits. They're a victim of our supply chain problems and won't be available until sometime this November. I already owned a Cen-Tech cable tracker 94181 that I bought years ago when I wired my house for low voltage network/phone/speakers. It won't work with energized circuits, but once I turned off the circuit breaker, I was able to trace the problem to a bad outlet in my attic from inside the house through the drywall. I couldn't find the exact unit on Amazon, but a search for Cen-Tech cable tracker 94181 returns results that look almost identical for under $30. Automotive Car Repair Diagnostic Tool Cable Circuit Wire Tracker Tracers Analyzer Short Open Finder Tester Checker Device Detector Probe DC 6-42V.

To me, this would be an invaluable tool when tracing wires where previous owners possibly changed wire colors. In this thread, just validating that the wiring is what you think it is.