
<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Rene<br class=""><div><blockquote type="cite" class=""><div class="">On 11 Dec 2018, at 6:04 AM, René Schmitz <<a href="mailto:synth@schmitzbits.de" class="">synth@schmitzbits.de</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi David,<br class=""><br class="">On 10.12.2018 08:36, David G Dixon wrote:<br class=""><blockquote type="cite" class="">Such a "zener bridge" is at the heart of every Dixie, Rubicon, and Atlantis VCO.<br class=""></blockquote><br class="">Have you posted these schematics somewhere?<br class=""></div></div></blockquote><br class=""></div><div>Just found this VCO schematic online that features this:</div><div><br class=""></div><div>page 16</div><div>dual integrator quadrature VCO (sinusoidal, not sure how useful for synths) using 3080 OTA</div><div><br class=""></div><div><a href="https://www.americanradiohistory.com/Archive-Electronics-Today/Canada/70s/ETI-CA-1978-12.pdf" class="">https://www.americanradiohistory.com/Archive-Electronics-Today/Canada/70s/ETI-CA-1978-12.pdf</a></div><div><br class=""></div><div>Article is by Tim Orr, who I think used to work for EMS?</div><div><br class=""></div></body></html>