IIRC, Dragon 32s were only available in the UK..
Have you contacted any of the UK Dragon user about a spare Power Supply or Work Arounds???
There is a Facebook Group and a forum at World of Dragon...
What a pitty that nowadays some classic computer groups are using Facebook instead a forum. I hate Facebook, but I found it specially annoying for topics or hobbies like retrocomputing.
Anyway, fortunately enough there is a relatively easy way to build a Dragon32 psu detailed on a public website -> http://archive.world...wer_supply_unit
In essence is just wiring a toroidal transformer to the proper DB9 Dragon32 PSU pinout and to 220V.
The problem is that this implies some work (create a box to acommodate the transformer + wiring) and it isn't cheap at all.
Hope having helped.
I'm in the exact same situation and I will finally go for a toroid transformer as my Dragon PSU PT 48290 is giving just 4,5VAC on both SEC I and II
Haven't tried yet to open the PSU, but I don't want to break it (it's sealed with some metal clips).
Edited by Quickie, Thu May 17, 2018 8:25 AM.