<div dir="ltr">The Remco used a <span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px">SN76488NF - nearly identical to the SN76477 but with an internal amplifier. I think it also came out a year or two earlier. </span><div><span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px">I was asked to fix a Remco a few years ago and was never able to get the envelope fully working, even trying half a dozen chips from different sources and date codes. I've seen multiple datasheets for these with slight variations on pinout and (iirc) gating and envelope control. Also could never find any video of the envelope working in a standard attack/release as the datasheet or Remco instructions described. I suspect the chips were never fully functional, or it's incredibly easy to break the envelope circuit on the chip even following the simple datasheet examples. Wasted too much money hitting dead ends.</span></div><div><span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px">I am a big fan of the sounds from the Blacet Darkstar which used a SN76477, which focuses more on the noise generator. </span></div><div><span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px"><br></span></div><div><span style="color:rgb(77,81,86);font-family:Roboto,arial,sans-serif;font-size:14px">Nathan</span></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 31, 2023 at 1:05 PM Todd Sines via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>I had one of these toys based on the chip, quasi-operational, for a while<div><br></div><div><div style="display:block"><div style="display:inline-block" role="link"><a style="border-radius:10px;font-family:-apple-system,Helvetica,Arial,sans-serif;display:block;width:300px;overflow:hidden;text-decoration:none" rel="nofollow" href="https://reverb.com/item/16733244-remco-electronic-sound-fx-machine-vintage-analog-synthesizer-1979" dir="ltr" role="button" width="300" target="_blank"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:rgb(229,230,233);font-family:-apple-system,Helvetica,Arial,sans-serif" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td align="center"><img style="width: 300px; height: 225px;" width="300" height="225" alt="j4naxozpug8akluvgy5r.jpg" src="cid:18875abad92efe345691"></td></tr><tr><td><table bgcolor="#E5E6E9" cellpadding="0" cellspacing="0" width="300" style="font-family:-apple-system,Helvetica,Arial,sans-serif;table-layout:fixed;background-color:rgb(229,230,233)"><tbody><tr><td style="padding:8px 0px"><div style="max-width:100%;margin:0px 16px;overflow:hidden"><div style="font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://reverb.com/item/16733244-remco-electronic-sound-fx-machine-vintage-analog-synthesizer-1979" style="text-decoration:none" target="_blank"><font color="#272727" style="color:rgba(0,0,0,0.847)">Remco Electronic Sound FX Machine Vintage Analog Synthesizer 1979</font></a></div><div style="font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://reverb.com/item/16733244-remco-electronic-sound-fx-machine-vintage-analog-synthesizer-1979" style="text-decoration:none" target="_blank"><font color="#808080" style="color:rgba(0,0,0,0.498)">reverb.com</font></a></div></div></td></tr></tbody></table></td></tr></tbody></table></a></div></div><div><br></div><div><br></div><div>Thomas Henry heavily exploited it here</div><div><br></div><a href="https://www.birthofasynth.com/Thomas_Henry/Pages/SN-Voice_main.html" target="_blank">https://www.birthofasynth.com/Thomas_Henry/Pages/SN-Voice_main.html</a></div><div><br><div><div style="display:block"><div style="display:inline-block" role="link"><a style="border-radius:10px;font-family:-apple-system,Helvetica,Arial,sans-serif;display:block;width:300px;overflow:hidden;text-decoration:none" rel="nofollow" href="https://synthcube.com/cart/t-henry-sn-voice-euro-panel-pcb-ic" dir="ltr" role="button" width="300" target="_blank"><table style="table-layout:fixed;border-collapse:collapse;width:300px;background-color:rgb(229,230,233);font-family:-apple-system,Helvetica,Arial,sans-serif" cellpadding="0" cellspacing="0" border="0" width="300"><tbody><tr><td><table bgcolor="#E5E6E9" cellpadding="0" cellspacing="0" width="300" style="font-family:-apple-system,Helvetica,Arial,sans-serif;table-layout:fixed;background-color:rgb(229,230,233)"><tbody><tr><td style="padding:8px 0px"><div style="max-width:100%;margin:0px 16px;overflow:hidden"><div style="font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://synthcube.com/cart/t-henry-sn-voice-euro-panel-pcb-ic" style="text-decoration:none" target="_blank"><font color="#272727" style="color:rgba(0,0,0,0.847)">Thomas Henry SN Voice (Euro Aluminum Thru-hole)</font></a></div><div style="font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://synthcube.com/cart/t-henry-sn-voice-euro-panel-pcb-ic" style="text-decoration:none" target="_blank"><font color="#808080" style="color:rgba(0,0,0,0.498)">synthcube.com</font></a></div></div></td><td style="padding:6px 12px 6px 0px" width="36"><a rel="nofollow" href="https://synthcube.com/cart/t-henry-sn-voice-euro-panel-pcb-ic" target="_blank"><img style="display: inline-block; width: 36px; height: 36px; border-radius: 3px;" width="36" height="36" alt="PCBTHSNVCNONE01-150x150.jpg" src="cid:18875abad9244fd176a2"></a></td></tr></tbody></table></td></tr></tbody></table></a></div></div><div><br></div>I just sold both PCBs as I wasn’t into the video game sound one coaxes out of that chip, but for some, it could be just right.</div><div><br></div><div>Crash Course in Science were really into using these types of things for their sound — a bunch of “one-hit wonders” (since no one could really track CV at the time.</div><div><br></div><div>Todd<br><br><blockquote type="cite"><div>On May 31, 2023, at 12:47 PM, Terry Bowman via Synth-diy <<a href="mailto:synth-diy@synth-diy.org" target="_blank">synth-diy@synth-diy.org</a>> wrote:</div><br><div><div style="overflow-wrap: break-word;"><br><div><blockquote type="cite"><div>On May 31, 2023, at 3:43 AM, Eric Frampton <<a href="mailto:eric@ericframpton.com" target="_blank">eric@ericframpton.com</a>> wrote:</div><br><div><div>Found this. </div></div></blockquote><div><br></div>*snip*</div><div><br><br><blockquote type="cite"><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></blockquote><div><br></div><div>Thanks to your heads-up I was able to find ads for it:</div><div><br></div><div><a href="https://worldradiohistory.com/hd2/IDX-Consumer/Archive-Poptronics-IDX/search.cgi?zoom_sort=0&zoom_xml=0&zoom_query=SE-01+Sound+Effects&zoom_cat[]=-1&zoom_cat[]=3&zoom_per_page=10" target="_blank">https://worldradiohistory.com/hd2/IDX-Consumer/Archive-Poptronics-IDX/search.cgi?zoom_sort=0&zoom_xml=0&zoom_query=SE-01+Sound+Effects&zoom_cat%5B%5D=-1&zoom_cat%5B%5D=3&zoom_per_page=10</a></div><div><br></div><div><br></div><div>I wonder if there was an article about it somewhere, not just the advertisements. I'm sure I saw this at the time but I have no memory of it or Bullet Electronics.</div><div><br></div><div><br></div></div><div>
<div dir="auto" style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none"><div dir="auto" style="text-align:start;text-indent:0px"><div dir="auto" style="text-align:start;text-indent:0px"><div dir="auto" style="text-align:start;text-indent:0px"><div style="text-align:start;text-indent:0px"><div style="text-align:start;text-indent:0px"><div style="text-align:start;text-indent:0px"><div style="text-align:start;text-indent:0px"><div style="letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;text-align:start;text-indent:0px">Terry Bowman, KA4HJH<br>"The Mac Doctor"<br><br></div><div style="letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;text-align:start;text-indent:0px"><a href="https://www.astarcloseup.com/" target="_blank">https://www.astarcloseup.com</a></div><div style="letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;text-align:start;text-indent:0px"><br></div><div style="text-align:start;text-indent:0px">"I’ve seen things you <span style="font-style:normal">people</span><span> </span>wouldn’t believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near Tannhäuser Gate. </div><div style="text-align:start;text-indent:0px"><br></div><div style="text-align:start;text-indent:0px">"All those moments will be lost in time like tears in the rain.</div><div style="text-align:start;text-indent:0px"><br></div><div style="text-align:start;text-indent:0px">"Time to die"— Roy Batty,<span> </span><i>Blade Runner</i></div></div></div></div></div></div></div></div></div></div></div></div>
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