The Polytone Minibrute is still made.
Check out
www.newulmtel.net/~musicbrn. Brown Music is a dealer for Polytone and shows their complete line on their web site. I don't believe that Polytone has a
web site.
I have bought most of my equipment from Bill Brown. I find he is easy to work with. Brown Music phone number is 1-507-354-3615. Located in New Ulm Minnesota.
You may find a used one on their web site.
Good luck.