Today is Robert Moog's birthday (May 23, 1934 – August 21, 2005); he was an electronic music pioneer and inventor of the Moog synthesizer. My first keyboard was a Realistic Concertmate MG-1, built my Moog Music but sold by Radio Shack under their Realistic brand name. Mine cost around $260 and unfortunately, I no longer have it. The interior insulation was made from polyurethane foam which has turned into a brackish green goo over the years until finally the keyboard would no longer play.
I did quite a bit of recording with it. My other keyboards, while more sophisticated, just can’t make the same fat buzzing synth sound as that MG-1!