[dalanglois]

Hi!
I think I finally have it working properly! I tried to keep track of everything I did, but it may have been more than a single issue.
The Q4 socket contacts are definitely problematic. I probably got something stuck in there because the pins seem loose now. I ordered some replacements, but that was definitely part of the problem. I’m currently getting good-looking voltages, but I’m temporarily using Q4 with the pins slightly bent.
I also reflowed quite a few joints around R18-R19-C8-C11-Q5 and cleaned some gunk left on the PCB.
Here’s what it sounds like (straight into an amp sim — it’s too late to crank a real amp):

I’ll put that in an enclosure as soon as I receive the replacement sockets!

Thank you for your help!

[dalanglois]

Hi again!

Yeah I made sure to write the readings in the order you asked, pinout for BC550 was the other way around of the FET, right to left vs left to right.
C8 and c12 negative sides indeed have continuity to ground.
FETs are 2N5485.

I’ll try to get some replacements to try out (seems to be a good practice to have some on hand due to their inconsistency), while testing/replacing parts around Q3 and Q5. I’ll get around building an audio probe too, that could be useful!

[dalanglois]

Hi! Thank you for your time!

Here are the transistor voltages :
Q1 : 1.29V , 1,88V, 5,43V
Q2 : 8.19V , 5.82V , 3.9V
Q3 : 5.6V , 0.24V , 0V
Q4 : 8.18V , 4.14V, 0.5V
Q5 : 2.77V , 1.17V, 0V
Q6 : 8.18V , 4.3V , 3.7V

[dalanglois]

Hi! Thanks for having a look!

I read in Build doc for v2 specifically asks to reverse C8 and C12 from the silkscreen layout. Was corrected in v2.1.

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[dalanglois]

Output jack was reverse wired hence the shrink tubing and color change. Q1 is a BC550.

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