University Sound demonstration record

[electra225]

I built a set of University Sound speakers for a 4-H project in 1963. I received a promotional/demonstration record with the speakers. The interesting part of the record is that it is yellow plastic that you can see thru. With the grooves running backwards to each other, it appears the record is stationary, and only the label turns. The record has some pretty good music on it. It's early hyper-stereo, with the ping pong effect many people criticize, but I find fascinating.