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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Yeah we often used to see the same thing in analogue mixers. 5532s and 072s have huge power supply rejection ratios, yet sometimes each input module often
had its own pair of regulators which added nothing to the performance.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Benjamin Tremblay [mailto:btremblay@me.com]
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<b>Sent:</b> 04 August 2022 15:53<br>
<b>To:</b> Mike Bryant<br>
<b>Cc:</b> Gordonjcp; synth-diy@synth-diy.org<br>
<b>Subject:</b> Re: [sdiy] Help with Jupiter 8 clone<o:p></o:p></span></p>
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<p class="MsoNormal">It’s not like Roland was an industry leader in PSU technology. We need a good power supply for a Jupiter 8. Done.<o:p></o:p></p>
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<p class="MsoNormal">You want your electronics to be tolerant of conventional supplies. Unless we’re talking about a current-starved USB plug, synth power supplies are good enough. <o:p></o:p></p>
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<p class="MsoNormal">I am driving a homemade bass synth using Alfa chips with a tiny cheap bipolar buck converter board. It sounds lovely powered with a wall wart.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Modular synths are current pigs. Too many modules use 7XXX voltage regulators sucking up too much current. If we could just start to back away from zener diodes and shunt regulators on our modules, the power
budget could plummet. If Eurorack is supposed to supply a standard set of rails, let’s just once and for all really start to use what’s there trustingly. And no I don’t care if it’s a switching supply.<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica","sans-serif";color:black">Benjamin Tremblay<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica","sans-serif";color:black"><a href="mailto:btremblay@me.com">btremblay@me.com</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica","sans-serif";color:black">330 Fiske Street<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica","sans-serif";color:black">Carlisle, MA 01741<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#333333;background:white">978-831-8315</span><span style="font-family:"Helvetica","sans-serif";color:black"><o:p></o:p></span></p>
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