I have designed 3 types of guitar/bass tube amplifiers. Ill be more specific later. Here is a pic of printed circuit boards. Soon more….
Working on a new guitar preamplifier.
Based on Soldano x88R , with some Hiwatt stuff and a EF86 stage.
Sofamp 2203 is a vacuum tube miniamp with Marshall 2203 pre-amplifier clone and a SE power amplifier.
Preamp – 2x 6N2P-EV.
Poweramp – 6P6S.