Trogotronic sell hand-built and customised analog tube gear, like this 'hotrodded' Heathkit oscillator (which must be pretty hot for $600, but does look wonderful). They also do cheaper all-new noise boxes, and 'crude audio controllers' - I particularly like the look of the Iron Cross, which seems to be a bomb-proof old arcade joystick which switches between the four audio inputs. Would be handy for the Nord G2, which has 4 outputs. Speaking of the Nord G2, I just made this patch which you might enjoy. (Thanks, Devin, and previously on Get Lofi)