“Here’s the result of my upright “Double Six”version. Great sounding amp (no hum and no buzz, etc). The VU meter is attached to the speaker output using a passive VU header. The small power transformer is for the backlight only (maybe I’ll change this to LED in the future). The chassis that I used is a little bit smaller (about 36x16cm), so I had to compress your design a litle bit.
“I think the next project is coming soon! Best regards from good old Bavaria.”