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TheBortot

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May 29, 2017
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there would be a way to produce -5v using some atx or notebook ac/dc or pico psu sufficient for arcade games? Well, tried to use the Retroelectronik supergun to play midway games, but it actually made my pit fighter and umk3 went bad( i could save umk3 at least). I think it didnt give enough currrent, probably less than 1 A that arcade psu usually does.
 
A negatron is a way to go. It should provide .5A at -5v if you supply it with 12v. That is the maximum current you will get from a negatron. Most game boards that require -5v should work fine with that.

Another option would be to get a small dedicated -5v supply that let’s say can supply 1-2A of current and tie that supply to your supergun’s supply.
 
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