tkrussell,
This one is for you. I work for an electric and gas utility. One of my coworkers had the following occur.
1st
Went to a residence for another reason but the homeowner said when my phone rings my light comes on.. when it rings again it gets brighter.. so he tried and sure enough 1 ring on, 2nd brighter all the way to off at the fourth ring, 3 way bulb and it was a touch lite..
2nd
Then they said the blow about 40 - 50 bulbs a year throughout the hse. So he check voltages coming in OK.. connections in the meter channel and the breaker panel OK.. so he assumed a neutral problem.. took a voltage at the main good put on a heavy 120 load voltage stayed the same.. on the other side the voltage went UP 1 - 1.5 volts..
I have never seen this nor has he..
Any thoughts about this..