It's a dumb name, but the thing has 2 6AK5's and 2 6AK6's so it adds up to 22. Don't judge me. Anyway, this started life as the first amp that I'd built. It was a 2 tube affair: http://www.frontiernet.net/~jff/pipsqueak_pentode/Pentode_DIY_guitar_amp.html Like the original author, I had built it into a dead computer PSU shell. Because of the size constraints, the transformer placement was not optimal and it had a lot of hum, but it was a fun little amp. Obviously, I can't leave well enough alone, and came up with this, reusing the PT and OT. I want to try my hand on a point-to-point build. Does it count if I used terminal strips? Here's the overview of the internals: I screwed up on drilling the bolt holes for the tube sockets. Close up of the amp part: Power supply section: Outside: There's 2 Soviet 6J1P-EV's pictured, but I eventually settled on 2 Tung-Sol 6AJ5's--much more mellow. The 6AK6's are running at 2W plate dissipation each (75% of max). The measured power output for the amp is 1.45W at 1KHz. The tubes are pretty microphonic when tapped, but at this low output, I don't notice it when playing. The sound is clean at lower volume, but when cranked up, it goes into a nice fat overdrive. At 1.45W, it's loud enough for the missus to come by to shut the door.