Welcome!
What you have stumbled upon is a
tribute to a piece of equipment that a small electronics firm
manufactured in the mid to late 1970's. It was a synthesizer kit
and the company is called PAIA. I built three of them and used
them in recording a little group I played bass in. My PAIAs did
not survive, and were ruined by a flood in my home in 1984, but they
were still working!
Below are two pictures of the PAIA 4700
series synthesizer in action (look for the arrows!) with my group
Syntax. For
more info about PAIA today, go to
http://www.paia.com/