vacuum tube

Hello there, This is my first post and i am currently into Chi-fi and trying to see how good and useable it is. As well as upgrading some parts. What do you people know about replacing the vacuum tube with solid state, discrete options? Anyone experience or thought's about this?

For many years I have been aware of the OTL (Output-TransformerLess) vacuum tube amplifiers designed by of Ralph Karsten of Atmasphere, a small St. Paul, Minnesota company. Ralph's contributions to discussions here at ASR under the handle "atmasphere" have been intelligent, courteous and...

I was 12 years old when the below film was produced, and four years away from assembling my first component HiFi system, the heart of which was a Bell Sound Model 2300, a 6L6 push-pull mono amplifier. My nostalgia for the electronics of my youth is manifested by having a quad of EL34's and a...