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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>john mahoney wrote:<br>><br>> I'm wondering if I can add a second cap to a <a href="http://Synthesizers.com">
Synthesizers.com</a> oscillator.<br>> These VCOs have a "LOW" range, but I'd like to add an "ULTRA LOW" mode, if<br>> practical.</blockquote>
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<div>John,</div>
<div> There's been some posts on <a href="http://Syn.com">Syn.com</a> list about getting super low. I suggested using the built in constant voltage source (pulse width turned fulling counter clockwise = steady -5 volts). Patch the pulse out to a CV in and it gets real slow.
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<div> I'm pretty sure the Q106 has a stable voltage source (5 or 10 volt). A little regulator by the power supply? How about attaching a voltage source of -5 and/or -10 to a switch, resistor from switch connected to CV summing point on pcb.
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<div>I don't know if there any drawbacks to this method? I'm curious.</div>
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<div>peng</div><br> </div>