Kit 6550
Good evening gentlemen,
Can any one help please, I have a KIT 6550 recently changed from a KAT 6550 with the aid of help from the forum. The amp has developed a hum and when tapped on the side tends to get very load, it is volume dependent and on both channels, I have rebuilt the power supply apart from the heater rectifier and resoldered all the connections. It sound like a bad earth but could be a component failing. Does anyone have any more ideas please.
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