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« Last post by mcrushing on November 12, 2024, 02:45:10 PM »
Cool, thanks Paul.
I'll do screws first, and also check the joints while I'm under the hood.
Just for my own electronics enrichment, I have a few questions when you get a minute.
1. It occurred to me to blame the input wiring because it's the closest thing in proximity to my hand when I placed it on the side of the wooden case. But if those wires were picking up noise and I'm hearing it on the output, it seems to me the volume would affect it...which it doesn't. Did you not mention it because you'd already ruled it out?
2. What's the cap actually doing in this application? My assumption is decoupling AC to break a possible ground loop. Why that location, though?
3. Why do body parts effectively shield electronics from RF even when they don't have an obvious path to ground? If putting my hand against the wooden side panel stops the amp from picking up interference, why wouldn't putting a hunk of permeable metal in that same spot work?