Get Tom's Hardware's best news and in-depth reviews, straight to your inbox. You are now subscribed Your newsletter sign-up was successful If you have a spare, old, unwanted PC power supply unit (PSU) just gathering dust, perhaps it could enjoy a new life as a bench power supply. This is probably the exact thought that fired across man-cave hobby channel Handmax Workshop’s neurons, which recently published a 5-minute video entitled ‘Don’t throw away your old PC PSU – do this instead!’ The video starts with a brief explanation of why a bench power supply is a useful piece of equipment for DIYers and tinkerers who sometimes have to or wish to work with electronics. Probably the most useful feature of such a device is to deliver an accurate, stable DC voltage for testing things if you have run out of batteries or you suspect the device is broken due to a battery compartment issue (e.g., corrosion).…