Hey everyone, I'm looking for any advice / experience dealing with this problem, since it seems (on the surface) like a common issue. (yes I know how to discharge caps and have done some minor board repairs...) I picked up a 2100 SLX (100W) cheap a few weeks ago in non-working condition, took a gamble on it. Came with a full retube (5881 power section). Immediately changed out a blown 4A mains fuse and put the correct 500mA fuses on the tube failovers (these were also 4A!). It fired up and sounded good— put about a half hour of play time on it. Other than scratchy pots the only thing out of the ordinary was a burning smell that came around as the amp got up to temperature. No smoke thankfully. Pulled the chassis and found a burn mark and some leads missing(?) near the 50/100W switch: Did some research and this seems like a common problem, probably from someone toggling that switch with the power on, right? From the schematic it looks like RD1 is absent (behind the board probably) and WH2 is hanging on by a thread... these go to the output tube plates. While testing the amp I did try both 50 and 100w switch positions (YES I powered down beforehand!) and both seemed to work-- not sure if there was any noticeable difference in sound so the switch might be bypassed. I'm expecting to see either a shorted wire or a crude repair when I pull the power board. Ran out of time but that's next on the list. Anyhow, any insight / advice or sympathy is appreciated. Thanks!