I have an early 80's Rowe R-90 that (1) has no sound on one side and (2) starts off sounding good but after 10-15 plays will start to have a lot of static. The two issues may be unrelated but they exist so thought I would disclose them. I have seen on several other posts related to sound that you should remove and reattach all of the connectors and have done so. Still no sound on one side. I have pictures of the amp and related but just don't know where to start. Any thoughts or ideas? I can be emailed at amcpeak@yahoo.com.