Hi, there's some new stuff on my page at Synthfool (thanks, Kevin!). Frequency Shifter schematics and description (many pages now ...), voltage controlled Reverb of my SynthiClone, my very first Ringmodulator (from JH-1, built around a single 3080), a little more about the JH-4 Polysynth. If you're interested, you may look at http://www.synthfool.com/diy/hj.html JH.