300VA Toroidal transformers with 30Vac secondaries and a lower current 12V winding. Perhaps good for small machines where having 50Vdc for your stepper motors (instead of the more popular 75V) is less of a concern.
https://www.ebay.co.uk/itm/2x30V-300...4AAOSwaLdaYm56
By the way, I also have heaps of 6000uF 120V capacitors which would go well with these.
