I did not swap out the LM317 in the PS, only the 78XX’s and 79XX. Jolida is 78XX.

Details on the Mk1 in the link at HiFi Collective and the Mk2 at NewClassD’s website.

Chip is Burr Brown 1798.

https://www.newclassd.com/index.php?page=257&hv=1

https://www.hificollective.co.uk/com...lassd_reg.html