I’ve been wanting to do these for... forever. But first I’ve had to work out a comfortable protocol to make the acid etch plates and cast aluminium wedge enclosures at home.
Believe me. There are hundreds of pieces of scraps lying around to get this first result.
More info on these sort of builds coming. I’m working on it. Expect a two knob Germanium Amplifier also. Point to point construction on amplifier tag strip. But they will cost a mini fortune, so don’t get too excited. - 8 hours ago