Quote:
Originally Posted by old_coot88
Why not use a battery? 9V would probably run it OK, and drain would be minimal. Give it an on/off switch.
(Hum bars are the horizontal dark shadings in the raster due to 60 or 120 Hz ripple (hum).
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I actually have a 12V battery in my pocket for that purpose. I figured I'd start there with my power supplies as it would be the "cleanest" supply.