J. Clarke on Mon, 22 Mar 2021 18:20:41
-0400 typed in rec.woodworking the following:

Again -not unusual
Next:
Screwed adapter into socket and plugged in tracer
Traced signal in breaker panel
Not one, but _two_ breakers showed signal
Notuncommon with a "fox and hound" transmitter - crosstalk between 2
adjacent cables shows up at 2 breakers - or 3 (or possibly even 4)
Turned both off
Went back upstairs
Checked for voltage again
No voltage--good
Flipped switch--checked again
Voltage--not good
Back to the panel
Identify third breaker, turn off
Now no voltage

You finally found the REAL power source.

Replaced fixture, turned breakers back on, everything works, I didn't
die.
Did you turn them on one at a time and check to see when the light
camne on?? My bet is when you turned the first 2 on the light still
didn't light - and the third (REAL power source) breaker caused the
light to come on. Go back and try, then get back to us with your
results.

It's a 3 way. Have to turn two breakers off with the switch in one
position before the light goes out. If I flip the switch, then I have
to turn the third breaker off to make it go out. I didn't try
multiple combinations of breakers and switch positions--the light is
up two flights of stairs from the breaker panel.

Putting the basement lights on their own circuit is another project
that I guess I should handle while cleaning up this mess.

This is sounding like one of Those Projects. Where it turns out
the easiest way to have solved it was to have taken the old bulb and
put it in a new house.
--
pyotr filipivich
This Week's Panel: Us & Them - Eliminating Them.
Next Month's Panel: Having eliminated the old Them(tm)
Selecting who insufficiently Woke(tm) as to serve as the new Them(tm)