Hi, I suspect that my caps are going bad (already are?) in my amplifier. It is a 1990 Marshall JCM900 4100, so the caps are at least 15 years old. The symptoms are intermittent fuzziness/static accompanied by random drops in volume along with an oscillating hum. There is no visible leaking in any of the caps. For example, I will let a chord ring out for a few seconds and I can hear the oscillation go up and down, this is followed by a static and intermittent drops in volume.
My question is; are these signs of failing caps? and, what are the audible signs of failing caps?
Right now there are two LCR 50uF+50uF, 500vDC caps. The tubes are brand new.
Thanks
My question is; are these signs of failing caps? and, what are the audible signs of failing caps?
Right now there are two LCR 50uF+50uF, 500vDC caps. The tubes are brand new.
Thanks
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