Power Adapter for Shugart Model 801 Drive

[Jimmy]

I have a Shugart Model 801. From the manual it requires 120vac, +24vdc, +5vdc and -5vdc. I have a Mean Well power supply Model RD-125B, that outputs both +24vdc and +5vdc. Can I user a step down converter to convert the +24vdc to -5vdc? There are several listed on eBay. Would I be better off just to buy a -5vdc wall adapter?

 

[Chuck(G)]

You want a DC-DC converter with isolated output. But before you do that, check the drive to see if the -5V rail goes anywhere. A lot of these drives don't use -5V at all, even though it's in the specs.