Hi guys, I just picked a U-1061 that's been bouncing around craigslist locally. The first I saw it was a few months ago in non-working condition paired with a 212. Eventually it was "taken to a reputable tech" though when I showed up it had a noticeable amount of noise in the EQ section. Word is that he replaced some diodes. I'll find out soon enough. In the end I scooped it up with the cab for $300. Maybe a little high for an amp that needs work but just look at that iron! I'm going to try replacing the 600/.01 cap before volume 1, 600/.02 before volume 2, and the 600/.02 cap before the treble control and go from there as far as the noise issue. (See post 2.) Filter caps, a bias check, and a 3 prong power cable are also on the short list. Tangent topic: Does anyone have a schematic to a U1511 or U1561 amp? According to a few forum posts, the main (only?) difference between the 10xx and the 15xx was that the latter came from the factory with 6550s. Here's a link to a U1561 using the same layout, chassis, and transformers. It has a sticker where the chassis is stamped for the 1061. I think you know where I'm going with this... Those transformers make my 20 oz powerade look tiny!