I have this strange thing with the sound when I use the radio, tape or CD:
The volume knob works in opposite direction or not at all !! or the desired
volume change take effect after 5-20 seconds later . . . .

I did check all the connections in the back of the unit, etc . . . .
If it is the "push on-off rheostat" combination is to be replace, where
can I buy it??

Did anyone had that problem before???? Thanks for your help.

Thanks.