gtgnyp
Nov 20, 2014, 06:56 PM
Transformer hums is this normal0
Grady White
Nov 20, 2014, 07:31 PM
Not "normal" but not unusual either.
ma0641
Nov 20, 2014, 07:54 PM
A transformer works by inductance and a hum is not uncommon. Listen near a power substation, lots of humming. Might be a loose screw or connector too.