Elka Dizzy Tone 1960s

Quite rare fuzz pedal made by Elka in Italy during 60s.
I bought it a while ago from the 1st owner which told me I had never changed anything.

This pedal sounds very very well, surprisingly it is quite nasty, distortion is complex, big and articulated. I have owned several reproductions but all were quite distant from this one...difficult to explain, distortion here is much more tri-dimensional.

I could only read the 2 of the 3 transistors: one is an SFT352, the other one reports DFT308 or something like that (writing has a bit faded) and the 3rd I can not read. 

Considering the age of more or less 50 the pedal is in great aesthetic conditions either.

For any questions do not hesitate to ask.