<div>Yes you're right. I just found those posts. Have you expanded it to multiple CV ins? Have you gotten any interesting/unexpected things out of this mod?</div>
<div> </div>
<div>peng<br><br> </div>
<div><span class="gmail_quote">On 12/5/05, <b class="gmail_sendername">xamboldt</b> <<a href="mailto:xamboldt@earthlink.net">xamboldt@earthlink.net</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">I mentioned doing this to an Evolution MIDI controller a few months<br>ago, and I first heard about it on the list quite a few months before
<br>that in posts by Grant Richter and Larry Hendry.<br><br>Anyway, I prevented negative voltage from getting into the circuit<br>with a diode routing neg voltages to ground. I don't have any<br>positive voltage protection other than the attenuator - although I'd
<br>like to add something. I was thinking of a zener, but haven't gotten<br>around to trying it yet... Has anyone else?<br><br>-Chris<br><br>On Dec 5, 2005, at 4:06 PM, megaohm wrote:<br><br>> I don't remember ever seeing anything about this. But it is such a
<br>> simple concept I'm sure it's been done.<br>><br>> The Radium's pots have 5 volts on one leg, ground on the opposite<br>> leg, and the wiper connects to a 4051. I disconnected the 5V source<br>> at the pot and soldered a wire from the 5V pad to the switch of a
<br>> NC jack. The tip of the jack is wired to the pot leg (the one that<br>> was connected to the 5V internal source. With nothing plugged in,<br>> the pot acts exactly how it normally did. Pug an envelope in and
<br>> that becomes the voltage source for the pot.<br>><br>> This should work for any digital stuff that uses voltage divider<br>> pots.<br>><br>> peng<br>><br>><br>><br>> On 12/5/05, Rafael Cohen <
<a href="mailto:rafael.cohen@gmail.com">rafael.cohen@gmail.com</a>> wrote:<br>> I vaguely remember the email on list about this process a while<br>> back, but can you remind me how this mod goes?<br>> Thanks,<br>
> Rafael<br>><br><br></blockquote></div><br>