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<p>That is pretty much what I do. Think about a Schottky diode
instead of the 4001. A BAT85 (PTH) or a SS14(SMT). They drop less
voltage. I found a 22uF bulk cap is the minimum for noise
reduction. Remember the rails in Eurorack case can be noisy. 10
ohms is okay for a module that pulls little current. I use 1 ohm.<br>
</p>
--Timster<br>
<br>
<div class="moz-cite-prefix">On 1/3/2017 12:41 PM, Jacob Watters
wrote:<br>
</div>
<blockquote
cite="mid:CAKcdib2H_JKQLbJUzbhokR5yabvGibb+uVgYzLOredEV1g0Vrg@mail.gmail.com"
type="cite">
<div dir="ltr">Do you do anything to the power rails on your
modules to filter the power and/or protect the module?
<div><br>
</div>
<div>Diodes? Caps? Resistors?</div>
<div><br>
</div>
<div>Below is a link to one well protected module that was
recommended to me. Note that the power source is the pins on
P3 and the power rails are the local ones on the module (kind
of confusing in this schematic - it looks like the diodes are
backwards).</div>
<div><br>
</div>
<div>I know that the diodes will cause a voltage drop that will
limit the overhead for opamps. My module is a filter with an
overdrive circuit that clips at +/-5V, so overhead isn't
really a concern.</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://jacobwatters.com/images/synth/europower.png">http://jacobwatters.com/images/synth/europower.png</a><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Thank you for your feedback and suggestions.</div>
<div><br>
</div>
<div><br>
</div>
<div>Sincerely,</div>
<div><br>
</div>
<div>Jacob Watters</div>
</div>
<br>
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
--Tim Ressel
Circuit Abbey
<a class="moz-txt-link-abbreviated" href="mailto:timr@circuitabbey.com">timr@circuitabbey.com</a></pre>
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