<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=""><br class=""><div><blockquote type="cite" class=""><div class="">On 6 Feb 2020, at 08:44, Julian <<a href="mailto:elfenjunge@gmx.net" class="">elfenjunge@gmx.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; 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="">Or I should just ditch the 3.3V MIDI in favour for 5V, since the 220 Ohm</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; 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=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; 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="">resistors current limiting makes the design much easier!</span></div></blockquote><br class=""></div><div>Have you got ten fried MIDI outputs on your bench yet? How much is this actually a problem and how much is it a theoretical problem?</div><br class=""><div class="">I wouldn't change the design to fix a problem unless I was sure I’d got a problem. The old “if it ain’t broke, don’t fix it” principle. That said, if you’re using 74HC14 for the output buffering, you could probably just run it on a 5V supply and it’d be done. I seem to remember the logic voltage levels are set up so it can convert from 3.3V input logic to 5V output.</div><div class=""><br class=""></div></body></html>