Ah,the name Zyto ! Now that rings a bell from many moons ago.
My Father used to get a magazine,more a small book,really,called "The Mechanic" 1950,s/early 60.s ?, in which adverts used to appear for this machine,from a supplier called "Tysack",I think. Are they still around?
Sadly all of those mags went AWOL due to two house moves [I could use them now }
No matter how well you pack your stuff for a house move,you,ll be very lucky if you end up with it all at the other end. Dont ask me how,but it happens,more so if there,s a time gap involved.