Hallo everybody,
I wanted a real tube amplifier without any solid state parts, so I build one. It implies 2 tubes ECL86, those are pentodes and high gain triodes in one envelope and I use a EZ81 as a rectifier tube. All AC heated, to avoid the use of diodes. It turned out alright, I got the PSU on a little PC board, home made of course and the rest is wired in silver. It is virtually noise free, it's got a 4 ohm 8 ohm switch as well as a triode pentode switch. In pentode mode it will produce about 4 watts per channel before audible distortion. Here are some pics.
