Reply 42940 of 52725, by BitWrangler
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Attention, extra attention, every atom of attention in your being...
Shreddoc wrote on 2022-03-02, 22:11:[Any regulated 9V center-negative pack of 950mA or greater (I recommend allowing headroom, for longevity - e.g. a 1500 or 2000mA regulated pack) will run the device.
... because of everything "sorta standardising" to center positive, center negative stuff is much rarer now. I've even hear ppl saying, "That's stupid, I've never seen it." like it's a myth or something. And even though when I was a kid, you had only a 50:50 chance of getting it right without checking, so it's somewhat ingrained in me, the center positive has become so common that I've taken to marking all my center negative stuff with red paint (actually wife's discarded nail polish) around the socket so I don't forget. My stuff is usually functional rather than shined up museum quality though, so maybe one could find red hole punch reinforcements that can be peeled off later if one didn't want to sully one's pristine piece of kit.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.