Odd Voltage Requirements (was: TU55 an ebay)

Hmmm... It depends on how 'original' you want the device to me. What I typically do is run it from astep-down transformer (provided it's not going to mind the lower mains frequency over here) to check that it works and to measure the transofrmer output voltages. And then I'll seriously consider replacing the transfoemr with one that has a 230V primary. If I care about originality, I leave the original transformer in place, and run it from the step-down transformer always. Of course if there's a mains voltage selector device I flip that. Therehas been one exception to all this so far. A 3rd-party power supply for the HP9114 HPIL disk drive (connects in place of the battery pack) that I believe was sold by a well-knwon HP calculator place. I was going to simply replace the transformer, but it was so badly made that IMHO it wasn't even safe for 115V mains input, let alone 230V. I simply built a complete new PSU -- properly! -tony