Chuck D. Bones take on one of Björn Juhl's designs, a hot rodded Honey Bee. Lots of tweaks all over the place so it probably differ quite a bit compared to the original circuit. I subbed the hard to source clipping diodes for NPN transistors to match the voltage drop and knee. Regular 1N4148s will work but they have a slightly lower voltage drop.
Schematic is avaiable HERE.