Ahh, bugger. :(

Thanks for the info thought - better to know now. Presume I can't tell from testing impedance on the coils etc what sort of thing to expect?
Still, for the purpose of putting something together with a theoretically working machine they'll serve a purpose proving I have an appropriately PSU.

I think they are from a printer or plotter though as my friend said he got them from a place by the local scrapper where he dismantled them from that sort of thing.