Carl, I have an old Harman Kardon receiver that I use for the exterior speakers, It runs real hot and on occasion will drop one of the channels. I'm not much for tinkering with electronics (in truth, i should prolly kill the main breaker before changing a light bulb for my safety) but would like to try to diagnose before buying a cheapo to replace it . Any advice where to start ? I thought maybe opening it up and blowing it out real good to start.. An easy fix would be great but if not, i'll just trash it..


and try this sail boat on for size

http://www.pdracer.com/plans/harley-8.pdf