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Single supply; -13.8V is ground. 12V should just reduce power.<br>
<br>
73,<br>
<br>
David N1HAC<br>
<br>
<br>
<div class="moz-cite-prefix">On 8/22/13 5:37 PM, Gordon & Lois
Duff wrote:<br>
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<p class="MsoNormal">I am a very happy owner of a Munin kit - a
hearty thanks to Don and Kjell.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Looking at the circuit board and the
schematic, I see power requirements of +/- 13.8V. I had hoped
to supply power from a clean PC power supply (12V). <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Two questions:<o:p></o:p></p>
<p class="MsoNormal"> 1. Hopefully, I don't need
+13.8V and -13.8V for a total of 27.6V. Correct?<o:p></o:p></p>
<p class="MsoNormal"> 2. If I only supply 12V
will a get the same performance, but at reduced power?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Gordon, KA2NLM<o:p></o:p></p>
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