I haven’t finished the panel yet, but it’s connected and working, so you can consider this verified. I got the idea to make a Boss CE-2 (it’s that famous chorus guitar pedal) LFO from @benjiao who has his own CE-2 project. My version is closer to the service manual schematic with a single triangle out through a 2SC945 transistor buffer and the Depth 1 lug connected to 4.5V. I adjusted the output to get a, roughly 0-5Vpp output, added an LED indicator, and a switch in between the rate capacitors (for which I used sockets to change them if need be). The original called for 100nF, but I found that 47nF and 1μF give a more useful range (@benjiao used 1μF and 10μF). As usual, the stripboard layout is tight and can fit behind a 2.5cm Kosmo panel.
