Probably not a PS cap. Sounds like the transformer. Does it go into standby when turned off?
Power amp hum...turned off
I have an Adcom 5400 power amp (about 10 years old), that has developed a loud hum intermittently with the power switch turned off. Pushing the power switch on or pulling the wall plug will stop the hum. Recently the same hum started while turned on and playing music. Switching the power on and off again stops the hum.
I have experienced this hum with an old basement fluorescent light fixture when turned off. Turning it on or pulling the plug stopped the hum. I know these lights have transformers. Could the amp transformer be causing the same phenomenon?
Any knowledge on what's happening would be appreciated.
I have experienced this hum with an old basement fluorescent light fixture when turned off. Turning it on or pulling the plug stopped the hum. I know these lights have transformers. Could the amp transformer be causing the same phenomenon?
Any knowledge on what's happening would be appreciated.
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