<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Found this. <div><br></div><div><div style="display: block;"><div style="-webkit-user-select: all; -webkit-user-drag: element; display: inline-block;" class="apple-rich-link" draggable="true" role="link" data-url="https://archive.org/stream/PopularElectronics/PopularElectronics1980-09_djvu.txt"><a style="border-radius:10px;font-family:-apple-system, Helvetica, Arial, sans-serif;display:block;-webkit-user-select:none;width:300px;user-select:none;-webkit-user-modify:read-only;user-modify:read-only;overflow:hidden;text-decoration:none;" class="lp-rich-link" rel="nofollow" href="https://archive.org/stream/PopularElectronics/PopularElectronics1980-09_djvu.txt" dir="ltr" role="button" draggable="false" width="300"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:#E5E6E9;font-family:-apple-system, Helvetica, Arial, sans-serif;" class="lp-rich-link-emailBaseTable" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td vertical-align="center"><table bgcolor="#E5E6E9" cellpadding="0" cellspacing="0" width="300" style="font-family:-apple-system, Helvetica, Arial, sans-serif;table-layout:fixed;background-color:rgba(229, 230, 233, 1);" class="lp-rich-link-captionBar"><tbody><tr><td style="padding:8px 0px 8px 0px;" class="lp-rich-link-captionBar-textStackItem"><div style="max-width:100%;margin:0px 16px 0px 16px;overflow:hidden;" class="lp-rich-link-captionBar-textStack"><div style="word-wrap:break-word;font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-topCaption-leading"><a rel="nofollow" href="https://archive.org/stream/PopularElectronics/PopularElectronics1980-09_djvu.txt" style="text-decoration: none" draggable="false"><font color="#272727" style="color: rgba(0, 0, 0, 0.847059);">Full text of "Popular Electronics (17 issues)"</font></a></div><div style="word-wrap:break-word;font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left;" class="lp-rich-link-captionBar-textStack-bottomCaption-leading"><a rel="nofollow" href="https://archive.org/stream/PopularElectronics/PopularElectronics1980-09_djvu.txt" style="text-decoration: none" draggable="false"><font color="#808080" style="color: rgba(0, 0, 0, 0.498039);">archive.org</font></a></div></div></td><td style="padding:6px 12px 6px 0px;" class="lp-rich-link-captionBar-rightIconItem" width="36"><a rel="nofollow" href="https://archive.org/stream/PopularElectronics/PopularElectronics1980-09_djvu.txt" draggable="false"><img style="pointer-events:none !important;display:inline-block;width:36px;height:36px;border-radius:3px;" width="36" height="36" draggable="false" class="lp-rich-link-captionBar-rightIcon" alt="glogo.jpg" src="cid:0848959D-2C29-4E03-AE1D-619D52678C5D"></a></td></tr></tbody></table></td></tr></tbody></table></a></div></div><br></div><div></div><div>--</div><div><br>Sound Effects Kit $18.S0 <br><br><br>The SE-01 Sound Effects Kit is a complete kit; all you need to build <br>a programmable sound effects machine except a battery and <br>speaker. Our kit is designed to really ring out the Tl 76477 Sound <br>Chip. Only the SE-01 provides you with additional circuitry that <br>includes a PULSE GENERATOR, MUX OSCILLATOR and <br>COMPARITOR to make more complex sounds a snap. We help <br>you in building the kit with a clear, easy-to-follow construction <br>manual and we show you how to easily program the unit. Other <br>dealers will sell you the chip or a "kit" of parts but you are on your <br>own to do the most difficult part., make neat sounds! Within a short <br>time after you build the SE-01 you can easily create Gunshots, <br>Explosions, Space Sounds, Steam Trains and much more. We <br>think the Bullet SE-01 is the best deal on the market but don’t ask <br>us, — ask the 15,000 happy SE-01 owners! <br><br>Complete Kit With Quality Plated PC Board $18.50 <br>(Less battery & speaker) <br><br>Users Group Notes; Includes additional programminq\fc^ <br>charts plus quarterly updates $5.00 <br>
<br>—</div><div><br></div><div><div>I’m pretty sure I've still got all my Popular Electronics issues from 1980, but I’m on the road for another month so I can’t scan it directly right now. I recall that around that same time PE published a kit using that chip. Remind me in a month or so and I'll go digging when I get home.</div><div><br></div><div>e</div><div><br><blockquote type="cite">On May 30, 2023, at 10:42 PM, Terry Bowman via Synth-diy <synth-diy@synth-diy.org> wrote:<br><br class="Apple-interchange-newline">
I just bought this little item:<br><br>https://www.ebay.com/itm/185910683582<br><br><br>You can't see it clearly in the picture so I asked the seller and he confirmed that it had an SN76477 on it. Does anyone know the history? The docs would be great.<br><br><br>
Terry Bowman, KA4HJH<br>"The Mac Doctor"<br><br>https://www.astarcloseup.com<br><br>"If only you could see what I've seen with your eyes."—Roy Batty, Blade Runner<br>
<br>_______________________________________________<br>Synth-diy mailing list<br>Synth-diy@synth-diy.org<br>http://synth-diy.org/mailman/listinfo/synth-diy<br>Selling or trading? Use marketplace@synth-diy.org<br></blockquote><br></div></div></body></html>