<div>And while we're talking about who's loving what chips, why don't you make that VCO out of V2164? 2164 VCO is so simple it doesn't need a schematics, and if one VCA cell used for temperature compensation you get good enough stability.<br></div><div>An integrator driven by 2164 followed by comparator with a few volts hysteresis, feeding back to 2164 input. Here's your square wave. And CV input is already exponential.<br></div><div><br></div><div>Roman<br></div><div class="nh_extra"><p>Dnia 6 października 2017 18:07 Jacob Watters <jacobwatters@gmail.com> napisał(a):<br></p><blockquote class="nh_quote" style="border-left: 2px solid #999; padding-left: 8px; margin: 0;"><div id="gwp18cfc503"><div id="gwp18cfc503h"><div class="gwp18cfc503b" data-message-body="true"><div dir="auto">Because it is a simple vco on a chip and I love tinkering with cmos stuff, so those options usually come to mind first.<br></div><div class="gwp18cfc503_gmail_extra"><div><br></div><div class="gwp18cfc503_gmail_quote"><div>On Oct 6, 2017 10:37 AM, "Jean-Pierre Desrochers" <<a nh-compose-link="" href="mailto:jpdesroc@oricom.ca" target="_blank"></a><a nh-compose-link="" href="mailto:jpdesroc@oricom.ca">jpdesroc@oricom.ca</a>> wrote:<br></div><blockquote is-minimized="" class="gwp18cfc503_gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><u></u><br></div><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif"><p>Thanks Jacob,<br></p><p><div>But why did you choose the X-4046 VCO from anything ?<br></div><div>Just curious..<br></div></p><p>JP<br></p><p>******************************<wbr>******************<br></p><p>Le 2017-10-06 10:05, Jacob Watters a écrit :<br></p><blockquote is-minimized="" type="cite" style="padding-left:5px;border-left:#1010ff 2px solid;margin-left:5px"><div dir="auto">A 4046 with an expo convertor might do. Remove all the waveshaping parts from the X-4046 VCO if you need a schematic to follow.<br></div><div class="gwp18cfc503_gmail_extra"><div><br></div><div class="gwp18cfc503_gmail_quote"><div>On Oct 6, 2017 9:33 AM, "Jean-Pierre Desrochers" <<a nh-compose-link="" href="mailto:jpdesroc@oricom.ca" target="_blank"></a><a nh-compose-link="" href="mailto:jpdesroc@oricom.ca">jpdesroc@oricom.ca</a>> wrote:<br></div><div> <br></div><blockquote is-minimized="" class="gwp18cfc503_gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><u></u><br></div><div style="font-size:10pt;font-family:Verdana,Geneva,sans-serif"><p>Hi list,<br></p><p><div>Anybody have a suggestion for an easy to build expo VCO (1v/oct)<br></div><div>that would be used as an LFO for my next sequencer project ?<br></div><div>I only need pulses output to drive digital sequence chips<br></div><div>and some stability because it's gonna be the sequencer's internal clock.<br></div><div>I've been checking around on the web.<br></div></p><p><div>Thomas Henry VCO designs could do but I'm not sure.<br></div><div>Again, I only need square (pulses) outputs.<br></div></p><p>Thanks.<br></p></div><div><br></div><div>______________________________<wbr>_________________<br></div><div> Synth-diy mailing list<br></div><div> <a nh-compose-link="" href="mailto:Synth-diy@synth-diy.org" target="_blank"></a><a nh-compose-link="" href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a><br></div><div> <a href="http://synth-diy.org/mailman/listinfo/synth-diy" target="_blank" nh-safe-redirect="" data-saferedirecturl="https://zasobygwp.pl/redirect?sig=f5a7d515e23e7b2847f308fc5d0ab7801fb7328904288997517fe23d09e8e120&url=aHR0cDovL3N5bnRoLWRpeS5vcmcvbWFpbG1hbi9saXN0aW5mby9zeW50aC1kaXk=">http://synth-diy.org/mailman/<wbr>listinfo/synth-diy</a><br></div></blockquote></div></div></blockquote><p> <br></p><div><pre><div>-- <br></div><div>« L'indépendance, c'est comme un pont :
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