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You can hack up an old ATX psu if youve got one lying around. Its got good clean regulated power with lots of amps to give. By standard you can combine rails to produce 24v, 17v, 15v, 12v, 9v, 7v, 5v and 3.3v. The rails can be split and further stepped down with a buck converter like the LM2569 or a ZXY6005
I use a 300w mATX PSU as a bench supply, it can power all my DC equipment. Gonna make a power panel soon for astro stuff.
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