HH scott 440a

Does anyone have any experience with fixing, or listening to hh scott amps. I can get this for 10 dollars .The left channel works, the right plays low, and is crackly. Is it a good idea, or should I say no thanks.

I know It might be more trouble than its worth, but as a noob I might gain some knowledge for having tried. I still believe there is a chance I can fix it maybe. The worst I can do is short something and finish off the left channel, and I will have a big paperweight.

Thanks in advance for any input.