power supply assy redesign for the Rusia Neagra MKII amplifier made by VIOTUBEAMP https://www.tehnium-azi.ro/forums/topic/6689-proiectul-nr49-amplificatorul-rusia-neagra/?tab=comments#comment-73357 pictures of the build are available here: https://photos.app.goo.gl/SxAB8hwyef6rpiTH7