Need a linear Power supply?
I'll build one for you for cost of parts + shipping + $15.
I can build a 17.5V(No load) 20Amp version
or a 16.5V(No load) 25Amp version.
estimated cost of parts is $40 for either version.
If anyone has a good source of large 20V Capacitors let me know.
If you have the room, linear PS tend to be cheaper than switching PS.
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