[jacquesm]

> Tube amps are also a lot of fun to build and tinker with because of the huge diversity in tube models, the operating point at which the tubes are run, the gain stage topology, power supply designs, etc.

You could say all of that about FETs and regular transistors too.

[voldacar]

Yeah that is true, but with tube amps you can tinker around with the circuit and actually hear a meaningful difference, which is more difficult with solid state amplification IME