Builders' experiences
Other people's reports on building these designs.
Reports by other builders, linked here rather than reproduced. Each entry points to the original page and, where available, to an archive copy in the Internet Archive’s Wayback Machine, so it stays readable if the original disappears.
German · by Carsten Rauth (carawu)
A phono stage built on Thorsten's cheap valve RIAA design, which he developed to avoid the problems of the classic RCA RIAA circuit: an ECC88 second stage, a semi-split RIAA network, and no cathode bypass capacitor in the first stage. Includes grounding and parts notes.
Original page · Archive copy: pending
German · by Martin Ruppel
A second phono stage built from a proposal Thorsten posted on the diyAudio forum, paired with a 6SN7 line stage that is also his design. Includes power supply prototype notes and tube substitutions for the line stage.
Original page · Archive copy: pending