OT: Show us your DIY tube amps

[gortnipper]

Here's my one of Audio Note Interstage Mono Blocks. It's 300b tubes in parallel.

How do you like these? I was very interested in these a while back, but they were a bit to pricey for me at the time and I ended up going down another road when I got a killer cheap deal on a very nicely built up Sun Audio 2A3SE amp.

I have three DIY SET amps that were built by a friend of mine who recently passed away. He was a prolific DIYer and these were his pride and joys. I bought two of them from him prior to his passing, and the third was gifted to me by him in exchange for liquidating his audio related estate when he was terminally ill.

The first is a set of 5842/45 monos in solid copper chassis. They were built around the basic Monkey design, as interpreted by Thorsten Loesch - Calculating DC coupled Single Ended Valve Amplifiers - Part #1 - Page 2 - diyAudio. These are very, very nice sounding.

The red one is a E180F/300B design based on this schematic AudioRoundTable.com: Group Build => SE 300B Project, Part 11 - The Amplifier Schematic These are very clean, but slightly rolled off on the top ? but I know the problem here and simply have to change out a variable R pot for a fixed R.

The green one is a 12HG7/845 based on a low-voltage implementation designed for the GM70 and adapted by Ken for the 845 to run at 750v on the plate. 8-10w clean output + ~15w headroom - How to Make a Transmitter Class Amp

I am just starting down the road of biamping my GPA-IIIs, and have a hot-rodded Rane AC23 ? replaced all the ICs with better quality and the ?? jacks with RCAs. Should be interesting.