Yeah, I did a full build thread on aguitarforum.com, but I brought it over here to get the rough edges smoothed out. Your notion that there's crud on the terminal is one that occurred to me but I've probed that pin every which way I can imagine, and I've reflowed the solder joint and it looks really nice. I don't think it's a short in the tube unless both tubes have it. Both tubes are pretty hot. Once temps reach the "damn, that hurts!" stage I can't really tell the difference. I wish (for the hundredth time) I had an oscope. Had some nice ones in the service.