<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="">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 AN.pdf" class="">https://www.experimentalistsanonymous.com/diy/Datasheets/SA571%20AN.pdf</a></div><div class=""><br class=""><div><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" class="">synth-diy@synth-diy.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" 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="moz-cite-prefix">On 3/24/23 8:48 AM, Benjamin Tremblay
via Synth-diy wrote:<br class="">
</div>
<blockquote type="cite" cite="mid:A4C024E7-4790-4F5C-9586-B24E86337315@me.com" class="">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" class="">
Oooh yes. <a href="https://synthcube.com/cart/rozendal-570-galore?search=570&description=true" class="" moz-do-not-send="true">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" class="moz-txt-link-freetext" moz-do-not-send="true">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" class="moz-txt-link-freetext" moz-do-not-send="true">tensiontype@hotmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<meta charset="UTF-8" class="">
<div class="elementToProof ContentPasted0" 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;
-webkit-text-stroke-width: 0px; text-decoration: none;
font-family: Calibri, Helvetica, sans-serif; font-size:
12pt; background-color: rgb(255, 255, 255);">I'd like to
build one if these, it really gets a lot out of the IC:<span class="Apple-converted-space"> </span><a href="https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal" id="LPlnkOWALinkPreview" class="moz-txt-link-freetext" moz-do-not-send="true">https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal</a><br class="">
</div>
<div class=" _EReadonly_1 _EType_OWALinkPreview _Entity
_EId_OWALinkPreview" style="caret-color: rgb(0, 0, 0);
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; -webkit-text-stroke-width: 0px;
text-decoration: none;">
<div id="LPBorder_GTaHR0cHM6Ly9tb2R1bGFyYWRkaWN0LmNvbS9tb2R1bGUtdHlwZS93YXZlc2hhcGVyLzU3MC1nYWxvcmUtZHluYW1pY3MtcHJvY2Vzc29yLXBjYi1wYW5lbC10aW1vLXJvemVuZGFs" class="LPBorder817794" style="width: 800px;
margin-top: 16px; margin-bottom: 16px; position:
relative; max-width: 800px; min-width: 424px;">
<table id="LPContainer817794" role="presentation" style="padding: 12px 36px 12px 12px; width: 750px;
border: 1px solid rgb(200, 200, 200); border-radius:
2px;" class="">
<tbody class="">
<tr style="border-spacing: 0px;" class="" valign="top">
<td class="">
<div id="LPImageContainer817794" style="position: relative; margin-right:
12px; height: 160px; overflow: hidden;
width: 240px;" class=""><a target="_blank" id="LPImageAnchor817794" href="https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal" class="" moz-do-not-send="true"><img id="LPThumbnailImageId817794" alt="" src="https://modularaddict.com/media/catalog/product/cache/7b553a36736bfc04a67b2db2e554e890/t/i/tim-570gal-pcp_1.jpg" style="display: block;" class="" moz-do-not-send="true" width="120" height="160"></a></div>
</td>
<td style="width: 488px;" class="">
<div id="LPTitle817794" style="font-size:
21px; font-weight: 300; margin-right: 8px;
font-family: wf_segoe-ui_light, "Segoe
UI Light", "Segoe WP Light",
"Segoe UI", "Segoe WP",
Tahoma, Arial, sans-serif; margin-bottom:
12px;" class=""><a target="_blank" id="LPUrlAnchor817794" href="https://modularaddict.com/module-type/waveshaper/570-galore-dynamics-processor-pcb-panel-timo-rozendal" style="text-decoration: none; color:
var(--themePrimary);" class="" moz-do-not-send="true">570 Galore -
Dynamics Processor PCB/Panel | Timo
Rozendal</a></div>
<div id="LPDescription817794" 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="LPMetadata817794" 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/" class="" moz-do-not-send="true">modularaddict.com</a></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<br style="caret-color: rgb(0, 0, 0); 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; -webkit-text-stroke-width: 0px;
text-decoration: none;" class="">
<div class="elementToProof ContentPasted0" 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;
-webkit-text-stroke-width: 0px; text-decoration: none;
font-family: Calibri, Helvetica, sans-serif; font-size:
12pt; background-color: rgb(255, 255, 255);"><br class="">
</div>
<hr tabindex="-1" style="caret-color: rgb(0, 0, 0);
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; -webkit-text-stroke-width: 0px;
text-decoration: none; display: inline-block; width:
1225px;" class=""><span style="caret-color: rgb(0, 0,
0); 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; -webkit-text-stroke-width: 0px;
text-decoration: none; float: none; display: inline
!important;" class=""></span>
<div id="divRplyFwdMsg" dir="ltr" style="caret-color:
rgb(0, 0, 0); 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;
-webkit-text-stroke-width: 0px; text-decoration: none;" class=""><font style="font-size: 11pt;" class="" face="Calibri, sans-serif"><b class="">From:</b><span class="Apple-converted-space"> </span>Synth-diy <<a href="mailto:synth-diy-bounces@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">synth-diy-bounces@synth-diy.org</a>>
on behalf of Benjamin Tremblay via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">synth-diy@synth-diy.org</a>><br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>Friday, 24
March 2023 2:23 PM<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>David
Moylan <<a href="mailto:dave@expeditionelectronics.com" class="moz-txt-link-freetext" moz-do-not-send="true">dave@expeditionelectronics.com</a>><br class="">
<b class="">Cc:</b><span class="Apple-converted-space"> </span><a href="mailto:Synth-diy@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">Synth-diy@synth-diy.org</a><span class="Apple-converted-space"> </span><<a href="mailto:Synth-diy@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">Synth-diy@synth-diy.org</a>><br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [sdiy]
NE570 source in the US?</font>
<div class=""> </div>
</div>
<div class="BodyFragment" style="caret-color: rgb(0, 0,
0); 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; -webkit-text-stroke-width: 0px;
text-decoration: none;"><font class="" size="2"><span style="font-size: 11pt;" class="">
<div class="PlainText">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" class="moz-txt-link-freetext" moz-do-not-send="true">synth-diy@synth-diy.org</a>>
wrote:<br class="">
><span class="Apple-converted-space"> </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="Apple-converted-space"> </span><br class="">
><span class="Apple-converted-space"> </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="Apple-converted-space"> </span><br class="">
>> Thanks,<br class="">
>><span class="Apple-converted-space"> </span><br class="">
>> Nathan<br class="">
>><span class="Apple-converted-space"> </span><br class="">
>>
_______________________________________________<br class="">
>> Synth-diy mailing list<br class="">
>><span class="Apple-converted-space"> </span><a href="mailto:Synth-diy@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">Synth-diy@synth-diy.org</a><br class="">
>><span class="Apple-converted-space"> </span><a href="https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsynth-diy.org%2Fmailman%2Flistinfo%2Fsynth-diy&data=05%7C01%7C%7C9407016ec6b64d2f761d08db2c6b934d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638152612782371480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UNStFrjXG%2F8tzYtQ%2F0cNHPRKkyWUCnmxHDQoKZYXzhY%3D&reserved=0" class="" moz-do-not-send="true">https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsynth-diy.org%2Fmailman%2Flistinfo%2Fsynth-diy&data=05%7C01%7C%7C9407016ec6b64d2f761d08db2c6b934d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638152612782371480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UNStFrjXG%2F8tzYtQ%2F0cNHPRKkyWUCnmxHDQoKZYXzhY%3D&reserved=0</a><br class="">
>> Selling or trading? Use<span class="Apple-converted-space"> </span><a href="mailto:marketplace@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">marketplace@synth-diy.org</a><br class="">
><span class="Apple-converted-space"> </span><br class="">
><span class="Apple-converted-space"> </span><br class="">
> --<span class="Apple-converted-space"> </span><br class="">
> David Moylan<br class="">
> Expedition Electronics<br class="">
> sonic adventures!<br class="">
><span class="Apple-converted-space"> </span><br class="">
>
_______________________________________________<br class="">
> Synth-diy mailing list<br class="">
><span class="Apple-converted-space"> </span><a href="mailto:Synth-diy@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">Synth-diy@synth-diy.org</a><br class="">
><span class="Apple-converted-space"> </span><a href="https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsynth-diy.org%2Fmailman%2Flistinfo%2Fsynth-diy&data=05%7C01%7C%7C9407016ec6b64d2f761d08db2c6b934d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638152612782371480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UNStFrjXG%2F8tzYtQ%2F0cNHPRKkyWUCnmxHDQoKZYXzhY%3D&reserved=0" class="" moz-do-not-send="true">https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsynth-diy.org%2Fmailman%2Flistinfo%2Fsynth-diy&data=05%7C01%7C%7C9407016ec6b64d2f761d08db2c6b934d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638152612782371480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UNStFrjXG%2F8tzYtQ%2F0cNHPRKkyWUCnmxHDQoKZYXzhY%3D&reserved=0</a><br class="">
> Selling or trading? Use<span class="Apple-converted-space"> </span><a href="mailto:marketplace@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">marketplace@synth-diy.org</a><br class="">
<br class="">
_______________________________________________<br class="">
Synth-diy mailing list<br class="">
<a href="mailto:Synth-diy@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">Synth-diy@synth-diy.org</a><br class="">
<a href="https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsynth-diy.org%2Fmailman%2Flistinfo%2Fsynth-diy&data=05%7C01%7C%7C9407016ec6b64d2f761d08db2c6b934d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638152612782371480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UNStFrjXG%2F8tzYtQ%2F0cNHPRKkyWUCnmxHDQoKZYXzhY%3D&reserved=0" class="" moz-do-not-send="true">https://apac01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fsynth-diy.org%2Fmailman%2Flistinfo%2Fsynth-diy&data=05%7C01%7C%7C9407016ec6b64d2f761d08db2c6b934d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638152612782371480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=UNStFrjXG%2F8tzYtQ%2F0cNHPRKkyWUCnmxHDQoKZYXzhY%3D&reserved=0</a><br class="">
Selling or trading? Use<span class="Apple-converted-space"> </span><a href="mailto:marketplace@synth-diy.org" class="moz-txt-link-freetext" moz-do-not-send="true">marketplace@synth-diy.org</a></div>
</span></font></div>
</div>
</blockquote>
</div>
<br class="">
</div>
<br class="">
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Synth-diy mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Synth-diy@synth-diy.org">Synth-diy@synth-diy.org</a>
<a class="moz-txt-link-freetext" href="http://synth-diy.org/mailman/listinfo/synth-diy">http://synth-diy.org/mailman/listinfo/synth-diy</a>
Selling or trading? Use <a class="moz-txt-link-abbreviated" href="mailto:marketplace@synth-diy.org">marketplace@synth-diy.org</a>
</pre>
</blockquote>
</div>
_______________________________________________<br class="">Synth-diy mailing list<br class=""><a href="mailto:Synth-diy@synth-diy.org" class="">Synth-diy@synth-diy.org</a><br class="">http://synth-diy.org/mailman/listinfo/synth-diy<br class="">Selling or trading? Use marketplace@synth-diy.org<br class=""></div></blockquote></div><br class=""></div></body></html>