u/IcyEagle752

I’ve had this vintage MCS 3872 integrated amplifier for about six months and the whole time the power level indicator hasn’t lit up once.

I recently changed my speaker set up from a pair of normal passive speakers to a pair of Bose 901 speakers. About two weeks after plugging them in and using them, I discovered this morning that the power level indicators are suddenly working again. It’s weird because it seems like this was a gradual improvement. I know for a fact they were weren’t working when I first plugged the 901 speakers in.

Is there a ghost in the machine or is this a common thing for vintage amplifiers?