<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">The Coolaudio clone, the V571, is available in DIP and still in current production.<div class=""><br class=""></div><div class="">Not sure where to get them now though. I used to have a pile, but I ran out.</div><div class=""><br class=""><div class="">
<div>Tom</div><br class="Apple-interchange-newline">
</div>
<div><br class=""><blockquote type="cite" class=""><div class="">On 25 Mar 2023, at 16:31, Michael E Caloroso via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">The 57x compandors have not been available in DIP for a long time.<div class=""><br class=""></div><div class="">Mouser lists the part as "not available" which means obsolete no longer made. If it were listed as "out of stock", there would be an entry for quantity and a note with lead time.<br class=""><div class=""><br class=""></div><div class="">MC</div></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Mar 24, 2023 at 10:40 AM Benjamin Tremblay via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="">synth-diy@synth-diy.org</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space" class="">Found these application notes, much like the ones stapled to my compander ICs I bought at Radio Shack.<div class=""><a href="https://www.experimentalistsanonymous.com/diy/Datasheets/SA571%20AN.pdf" target="_blank" class="">https://www.experimentalistsanonymous.com/diy/Datasheets/SA571%20AN.pdf</a></div><div class=""><br class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Mar 24, 2023, at 10:24 AM, Oren Leavitt via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank" class="">synth-diy@synth-diy.org</a>> wrote:</div><br class=""><div class="">
<div class=""><p class="">I built a PAiA 6710 vocoder back in the day. Clever minimal
design that used four NE570s <br class="">
</p><p class=""><br class="">
</p>
<div class="">On 3/24/23 8:48 AM, Benjamin Tremblay
via Synth-diy wrote:<br class="">
</div>
<blockquote type="cite" class="">
Oooh yes. <a href="https://synthcube.com/cart/rozendal-570-galore?search=570&description=true" target="_blank" class="">https://synthcube.com/cart/rozendal-570-galore?search=570&description=true</a>
<div class=""><br class="">
</div>
<div class="">Huh. I see clones of the 571 here!</div>
<div class=""><a href="https://cabintechglobal.com/semi" target="_blank" class="">https://cabintechglobal.com/semi</a></div>
<div class=""><br class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On Mar 24, 2023, at 9:44 AM, Sean Ellis <<a href="mailto:tensiontype@hotmail.com" target="_blank" class="">tensiontype@hotmail.com</a>>
wrote:</div>
<br class="">
<div class="">
<div style="font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;font-family:Calibri,Helvetica,sans-serif;font-size:12pt;background-color:rgb(255,255,255)" class="">I'd like to
build one if these, it really gets a lot out of the IC:<span class=""> </span><a href="https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal" id="m_816015696299531390LPlnkOWALinkPreview" target="_blank" class="">https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal</a><br class="">
</div>
<div style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none" class="">
<div id="m_816015696299531390LPBorder_GTaHR0cHM6Ly9tb2R1bGFyYWRkaWN0LmNvbS9tb2R1bGUtdHlwZS93YXZlc2hhcGVyLzU3MC1nYWxvcmUtZHluYW1pY3MtcHJvY2Vzc29yLXBjYi1wYW5lbC10aW1vLXJvemVuZGFs" style="width:800px;margin-top:16px;margin-bottom:16px;max-width:800px;min-width:424px" class="">
<table id="m_816015696299531390LPContainer817794" role="presentation" style="padding:12px 36px 12px 12px;width:750px;border:1px solid rgb(200,200,200);border-top-left-radius:2px;border-top-right-radius:2px;border-bottom-right-radius:2px;border-bottom-left-radius:2px" class="">
<tbody class="">
<tr style="border-spacing:0px" valign="top" class="">
<td class="">
<div id="m_816015696299531390LPImageContainer817794" style="margin-right:12px;height:160px;overflow:hidden;width:240px" class=""><a id="m_816015696299531390LPImageAnchor817794" href="https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal" target="_blank" class=""><img id="m_816015696299531390LPThumbnailImageId817794" alt="" src="https://modularaddict.com/media/catalog/product/cache/7b553a36736bfc04a67b2db2e554e890/t/i/tim-570gal-pcp_1.jpg" style="display: block;" width="120" height="160" class=""></a></div>
</td>
<td style="width:488px" class="">
<div id="m_816015696299531390LPTitle817794" class=""><a id="m_816015696299531390LPUrlAnchor817794" href="https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal" style="text-decoration:none" target="_blank" class="">570 Galore -
Dynamics Processor PCB/Panel | Timo
Rozendal</a></div>
<div id="m_816015696299531390LPDescription817794" style="font-size:14px;max-height:100px;color:rgb(102,102,102);font-family:wf_segoe-ui_normal,"Segoe UI","Segoe WP",Tahoma,Arial,sans-serif;margin-bottom:12px;margin-right:8px;overflow:hidden" class="">The 570 Gallore circuit was put
together via Timo Rozendal with heavy
influence from Thomas Henry's circuit
literature.This is for a PCB/Panel in
Eurorack Format</div>
<div id="m_816015696299531390LPMetadata817794" style="font-size:14px;font-weight:400;color:rgb(166,166,166);font-family:wf_segoe-ui_normal,"Segoe UI","Segoe WP",Tahoma,Arial,sans-serif" class=""><a href="http://modularaddict.com/" target="_blank" class="">modularaddict.com</a></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<br style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none" class="">
<div style="font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;font-family:Calibri,Helvetica,sans-serif;font-size:12pt;background-color:rgb(255,255,255)" class=""><br class="">
</div>
<hr style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;display:inline-block;width:1225px" class=""><span style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline" class=""></span>
<div id="m_816015696299531390divRplyFwdMsg" dir="ltr" style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none" class=""><font style="font-size:11pt" face="Calibri, sans-serif" class=""><b class="">From:</b><span class=""> </span>Synth-diy <<a href="mailto:synth-diy-bounces@synth-diy.org" target="_blank" class="">synth-diy-bounces@synth-diy.org</a>>
on behalf of Benjamin Tremblay via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank" class="">synth-diy@synth-diy.org</a>><br class="">
<b class="">Sent:</b><span class=""> </span>Friday, 24
March 2023 2:23 PM<br class="">
<b class="">To:</b><span class=""> </span>David
Moylan <<a href="mailto:dave@expeditionelectronics.com" target="_blank" class="">dave@expeditionelectronics.com</a>><br class="">
<b class="">Cc:</b><span class=""> </span><a href="mailto:Synth-diy@synth-diy.org" target="_blank" class="">Synth-diy@synth-diy.org</a><span class=""> </span><<a href="mailto:Synth-diy@synth-diy.org" target="_blank" class="">Synth-diy@synth-diy.org</a>><br class="">
<b class="">Subject:</b><span class=""> </span>Re: [sdiy]
NE570 source in the US?</font>
<div class=""> </div>
</div>
<div style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none" class=""><font size="2" class=""><span style="font-size:11pt" class="">
<div class="">I have a couple of 570s I
ordered in 2016 and forgot about. Is there simple
circuit schematic I can follow to stand them up
for experiments? I remember fiddling with one in
the 80s to make a noise gate for my Radio Shack
bbd board.<br class="">
<br class="">
Benjamin Tremblay<br class="">
<br class="">
> On Mar 24, 2023, at 9:13 AM, David Moylan via
Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank" class="">synth-diy@synth-diy.org</a>>
wrote:<br class="">
><span class=""> </span><br class="">
> Isn't the 571 going away too? They're out
at Mouser. Digikey still has stock, and that's
only in surface mount.<br class="">
><span class=""> </span><br class="">
><span class=""> </span><br class="">
>> On 3/24/23 1:30 AM, Nathan Trites wrote:<br class="">
>> Does anyone know where I can buy 4 or so
NE570 Compander ICs in the US? I know I can use
571 but figured I'd pick up a few if I could.
Smallbear/Synthcube is out, Banzai has them but
don't want them enough for international shipping.<br class="">
>><span class=""> </span><br class="">
>> Thanks,<br class="">
>><span class=""> </span><br class="">
>> Nathan<br class="">
>><span class=""> </span><br class="">
>>
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> --<span class=""> </span><br class="">
> David Moylan<br class="">
> Expedition Electronics<br class="">
> sonic adventures!<br class="">
><span class=""> </span><br class="">
>
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