Actually, $50 buys an ATX PSU that can run a modern almost highend PC and has the advantage of being both new and more compatible and easily swappable into other (modernish) syetems, etc. It is likely to outlive the usefulness(or even functionality) of that Beige G3 anyway.
The 7500 PSU is fifteen yearsold. 8-o It will just be a failure point in the future(and it does not have as high of a capacity as the Beige G3 want, as someone before mentioned)
It is way way more work to wire up a 7500 PSU for a Beige unless you actually know what you are doing and have experience with this sort of thing.
If fit matters that much to you then take a 7500 PSU and an ATX PSU to a electronics repair shop and see if they will put the guts of the ATX PSU in the 7500 case. Then you get a modern PSU that has a perfect fit and no hackjob-wiring. To get it done properly will likely not be super cheap though...
The 7500 PSU is fifteen yearsold. 8-o It will just be a failure point in the future(and it does not have as high of a capacity as the Beige G3 want, as someone before mentioned)
It is way way more work to wire up a 7500 PSU for a Beige unless you actually know what you are doing and have experience with this sort of thing.
If fit matters that much to you then take a 7500 PSU and an ATX PSU to a electronics repair shop and see if they will put the guts of the ATX PSU in the 7500 case. Then you get a modern PSU that has a perfect fit and no hackjob-wiring. To get it done properly will likely not be super cheap though...