Found in 1 comment on Hacker News
exabrial · 2022-11-14 · Original thread
On the opposite side of the spectrum:

I designed and created my own single-ended EL34 based guitar amp. This thing sounds bloody incredible when the output tube is in full tilt. It used a solid state power supply to decrease weight (from AliExpress), but ultimate bit the dust because the switching module was so unreliable.

Fresh book recommendations delivered straight to your inbox every Thursday.