<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br><div><br><blockquote type="cite"><div>On 8 Feb 2023, at 8:01 am, Terry Bowman via Synth-diy <synth-diy@synth-diy.org> wrote:</div><br class="Apple-interchange-newline"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br><div><blockquote type="cite"><div>On Feb 7, 2023, at 1:18 PM, Rutger Vlek via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:</div><br class="Apple-interchange-newline"><div><div dir="ltr"><div>For a while I've been working on a guitar pedal board for personal use. I'm about to build the second revision of a solid state pre-amp, and was thinking about possible modulation effects too. I would love a nice (stereo) BBD flanger/chorus, but felt a bit fed-up with all the 'classic' designs, particularly the traditional clocking scheme, usually with a limited range, lack of current drive (to overcome capacitance of the BBD clock input) and strictly linear modulation (calling for a hyper-triangle modulation source).</div></div></div></blockquote><br></div><div>Have you looked at Craig Anderton's design? (be sure to check out the LFO):</div><div><br></div><div><a href="http://midimanuals.com/manuals/paia/6750_hyperflange_and_chorus/assembly_and_using_manual/">http://midimanuals.com/manuals/paia/6750_hyperflange_and_chorus/assembly_and_using_manual/</a></div><div><br></div></div></div></blockquote></div><br><div><br></div><div>Thanks for the link Terry - that was really interesting. What do you think he means on page 34 by the term “synchro-sonic” ? Hard sync as in a synth waveform modulation? I wonder what that would sound like in an LFO driving a BBD? Pretty subtle I suspect...</div><div><br></div><div><br></div><div><img src="cid:81241917-0EF4-48EE-A840-C91F4989DB76" alt="grab 2023-02-08 at 8.31.36 am.png" width="640"></div><div><br></div><div><br></div><div><br></div><div>A</div></body></html>