<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">
Nice idea. Could also pass the output through a second opto to get a 4<span><sup>th</sup> harmonic to add into the mix.
<br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);" class="elementToProof">
<span><br>
</span></div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Synth-diy <synth-diy-bounces@synth-diy.org> on behalf of Oren Leavitt via Synth-diy <synth-diy@synth-diy.org><br>
<b>Sent:</b> 06 April 2023 18:33<br>
<b>To:</b> synth-diy@synth-diy.org <synth-diy@synth-diy.org><br>
<b>Subject:</b> Re: [sdiy] what opamp for "warmth"? (I know, I know...)</font>
<div> </div>
</div>
<div class="BodyFragment"><font size="2"><span style="font-size:11pt;">
<div class="PlainText">This popped into my email today:<br>
<br>
<a href="https://www.edn.com/a-simple-circuit-with-an-optocoupler-creates-a-tube-sound/">https://www.edn.com/a-simple-circuit-with-an-optocoupler-creates-a-tube-sound/</a><br>
<br>
- Oren<br>
<br>
On 4/3/23 4:18 PM, Neil Harper via Synth-diy wrote:<br>
> i know this is going to be controversial, and I'm grabbing my popcorn..<br>
><br>
> i have a digital effect that I'd like to "warm up" in the last dry/wet <br>
> mixing and output buffering stage. So wondering if there's any choice <br>
> of opamp that might give some favorable non-linearity quality to the <br>
> output sound. Would be running them with a single supply +9V.<br>
><br>
> as for what specs constitute "warmth", I'll leave that up to you.. :)<br>
><br>
><br>
><br>
_______________________________________________<br>
Synth-diy mailing list<br>
Synth-diy@synth-diy.org<br>
<a href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a><br>
Selling or trading? Use marketplace@synth-diy.org<br>
</div>
</span></font></div>
</body>
</html>