Matador

[Ingrad Baman]

Hello!

Somebody suggested this list to me when he heard about my problem. I hope I'll find a solution here from you.
I've got an old synth from a friend. I'm really interested in it and I'd like to hear its voice, but as I see there's no 
power supply in it! I've never seen (and thought) a way like this, because there's no cable coming out, there's no 
any hole on the surface for any power cable. There's just only one output for the sound (DIN). Inside I see a place 
seems for a changeable power supply (accumulator?).

I've made some photos to help recognize this stuff. See at http://www.extra.hu/baman/matador/

I've searched the web about Matador and found some pages but these all about the Matador made by Farfisa. My 
one contains the label 'Matador', but there's no other signs on it, just a little metal table on the back says:

F. A. Bohm KG. (+ address) [In the word Bohm the 'o' wears two points, it's a german name].

I need your help to find a description about this synth especially about the power supply. I'd like to repair it and use 
it if possible.


Thanks&bye.