I have an older reciever from the mid 80s, that while sweet and uber powerful and full of connectors, has dirty switches that makes its volume knob not really work. The unit has never been worked ...

I have a Sherwood S-7310 and the infamous volume control/switch bug has finally hit, i.e. the power switch is broken. So the receiver isn't really too valuable, but I'm not sure I want to drill out ...