Back in the mists of time (well, the late 1970s) I became the proud owner of a Hammant and Morgan Duette Controller courtesy of my parents, along with some Horribly Oversized and later Orribily Oversized vehicles bearing flanged wheels, many of which I still possess, together with aforesaid controller, which is rated for 240V AC whereas I now live in a 110V AC country where it would cost me cold hard cash to throw it away and I can't envisage any circumstances where I could use it again.
If there's anyone who could use such a device (for non-N trains of course), I have an upcoming opportunity to have it taken back to the UK at no cost to myself, and would happily arrange for it to be sent to a loving home.
A kind offer but I already have one, Squiddy, which will be used for powering accessories only