this is a put together chassis of a specific size. where he bought the chassis i do not know, but it completely comes apart, all 4 sides, the round corner pieces etc. Then he had the front,back and top all machined. all panels are .2 inch thick. And the front wood piece is esentially a stick on made of unknown wood.
absolutely every single thing about this is fucked to the max. broke the anti-spin pin off the pot and did not even bother to drill a single hole to prevent the pot from spinning. Some of the work was definitely done by an nc mill, and a really shitty one at that. on the mill i used, everything was accurate to .00001 inch, and it really was at least this accurate. this thing is barely accurate to .008 inch. nothing on either inch or metric boundaries. and the holes for the power supply board were drilled by hand, and blind tapped, 2 of the 4 holes went all the way thru the panel.
But the worst is the way under-rated power transformers which were potted with definitely the wrong stuff. And wiring all the filaments together.
And the stax jack it turns out is also massively fucked. And force held in with rubber o-rings. Gold plated hex screws with the gold coming off.
And the tube sockets were really low quality garbage, as bad as the russian crap that mikhail used.
The 3 boards from jlcpcb were a total of $65 with shipping. and shipping was half the price. The hand dremel tooled boards were so utterly fucked, no reason for any of this.
Somebody really high on really bad drugs did this. Not even mikhail or mike bean (hennyo) could do something so utterly and completely fucked. Wow, i gave hennyo a compliment, yikes.
The 300v tube supply is actually pretty clever and kind of unique, but also utterly fucked because he had the pass tube cathode wired to ground when it had to be connected to 300v.
And the bias supply with a 100k series resistor. Guaranteed to kill your headphones.
Its not my money going into this, so i will continue till its either completely finished and working or the tube diode power supply cannot be made to work. Looks like the repair price will be about $1500 in parts, plus the original purchase price of about $5k. All the improvements to the amp board are in the new board. There are places for solid state diodes on the power supply just in case.
There is no reason for any of this.
So far i have about 30 hours of labor in this. The mikhail es1 ended up about 50 hours of labor.
Yes i'm fucking nuts.
all you have to do is take my board files, have them made, stuff with parts, slap into chassis. how fucking hard can it be.