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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>MIDI Solutions still does. I think they were mentioned earlier in this thread.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><br>Dave<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Synth-diy [mailto:synth-diy-bounces@dropmix.xs4all.nl] <b>On Behalf Of </b>TOKALO@VIDEOTRON.CA<br><b>Sent:</b> Thursday, March 24, 2016 8:36 PM<br><b>To:</b> Jean-Pierre Desrochers; Synth-diy@dropmix.xs4all.nl<br><b>Subject:</b> Re: [sdiy] Possible MIDI interface powered by MIDI driving device...<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I seem to recall a company from the 90's who made MIDI powered devices, Anatek.<br><br>Tony K<br><br>On 3/24/16 2:13 PM, <b>Jean-Pierre Desrochers </b><<a href="mailto:jpdesroc@oricom.ca">jpdesroc@oricom.ca</a>> wrote:<o:p></o:p></p><div><p class=MsoNormal>Here is a possible MIDI interface that would sink its power from a MIDI driving device...<br><br><a href="http://www.arcenson.com/public/MIDI_interface_power_steeler.JPG" target=l>http://www.arcenson.com/public/MIDI_interface_power_steeler.JPG</a><br><br>---> Assuming that the driving MIDI device<br>---> (keyboard, sequencer, pedal board, etc..)<br>---> is powered by internal +5VDC supply..<br>The CPU would have to sink its 5vdc thru the 220 resistor<br>of the driving device. Doable..<br>I also think that it could work since the CPU MIDI output<br>would be 'opticaly' linked with the final receiving MIDI device.<br>Both driving and receiving devices would avoid ground loops<br>while a CPU process is running between them..<br><br>A friend of mine asked for a simple 'MIDI active sensing code (FE)'<br>hardware filter working without a DC supply..<br><br>JP<o:p></o:p></p></div></div></div></body></html>