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<a href="https://www.eevblog.com/2018/08/28/eevblog-1116-the-capacitance-multiplier/" id="LPlnk606040">https://www.eevblog.com/2018/08/28/eevblog-1116-the-capacitance-multiplier/</a></div>
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I believe the first documented use was in an early power supply IC to stabilise the thing. Don't think it was a Widlar design though, possibly one of Pease's. But as with all these things, someone probably did it with a valve long before that.<br>
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<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 grant musictechnologiesgroup.com <grant@musictechnologiesgroup.com><br>
<b>Sent:</b> 20 February 2023 22:16<br>
<b>To:</b> synth-diy@synth-diy.org <synth-diy@synth-diy.org><br>
<b>Subject:</b> Re: [sdiy] Signals leaking into the PSU?</font>
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<div>I think I'm #3 in the growing list of folks who have never heard of this.</div>
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<div>------ Original Message ------</div>
<div>From: "Mike Bryant" <<a href="mailto:mbryant@futurehorizons.com">mbryant@futurehorizons.com</a>></div>
<div>To: "Chris McDowell" <<a href="mailto:declareupdate@gmail.com">declareupdate@gmail.com</a>></div>
<div>Cc: "Tony Allgood via Synth-diy" <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>></div>
<div>Sent: 2/20/2023 1:32:47 PM</div>
<div>Subject: Re: [sdiy] Signals leaking into the PSU?</div>
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No idea how you've missed the term before - it's been the common name for that arrangement since the late 1970s.<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt; color:rgb(0,0,0)"><b>From:</b> Chris McDowell <<a href="mailto:declareupdate@gmail.com">declareupdate@gmail.com</a>><br>
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<div class="" style="word-wrap:break-word; line-break:after-white-space">Had never run into a capacitance multiplier before, Mike. At least I thought that until I looked at it ;) This is just one of them there "slow emitter followers" :P yessir <br class="">
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