Built my first Quickie and everything seemed to go well. The voltages all checked out so I plugged it in. It sounds great with one minor problem. After listening for a bit, either the left or right channel will begin to develop a static-like sound. I'm not sure how else to describe it. It's not terribly loud and difficult to hear during most songs, but it's definitely there and annoying as hell.
Interestingly, I've found that if I touch the tube for the channel with the noise, hold my fingers on it for a few seconds and release, the problem goes away, only to eventually come back later. The problem seems to occur more often on the right channel, but it does occur on the left side as well, just not quite as often. Any ideas???