So it is done and it sounds wonderful, more on that later. Thank You so much Max for all you do this is truly a beautiful project and it has been a joy to work on. It is truly one of the highest points in my DIY career and I am now what some consider middle aged!
Only a few notes that are build specific. I had to play with the resistor values in the PSU to get to the variable range to the 105VDC range (no big deal). I used Zayance's wonderful PCB for the build (also a thing of beauty) but pay strict attention to the ground plane on this board as it is not complete and you need to ground it properly. Lastly I broke the reed switch the first time trying to align it and had to buy another, again not of issue they cost under a dollar US so I bought 10.
I used the Thierch Blue Line M7. Wow! :-*
Sound is wonderful!!!!!! But I must share a subjective point I started with the kit supplied Phillips 408a tubes and they are very clean sounding and quiet. But they are also harsh on the high frequency with an emphasis that leads to annoying sibilance issues. So I switched out the Phillips to the venerable Western Electric 408a. Now these tubes are problematic as they are, to my ear noisier and often not NOS, but pulls from HiFi gear depending on where you get them so the are also prone to annoying artifacts like pops. so it took a few days of burn in and swap out before I got two that sounded really good but again to my ear slightly noisier than the Phillips. But oh what a sweet sound they have and the high end to my ear is bright but not harsh without sibilant annoyance. So that is my take on that IMHO as it is said.
