bob cordell

One of my next projects is a valve amplifier. I built many solid state amplifiers and I'm very happy with these. I always considered valve amplifiers as being vastly inferior to solid state one but nevertheless I would like to build one to measure it and to listen to it. From all the available...

This is a project I did last year - a mid 70s Luxman L-85v refurbishment with a re-engineered output stage. The output stage PCBs were damaged in the early 1980s I've I had this amp kicking around since then. After 30 years, I eventually decided to try designing and building some replacements...