Not audio related but also from Popular Electronics 1955. The 50's were a nutty time for electronics and DIY. This cow is tube powered to figure out what makes them happy and what kind of grass they like. I'm going out on a ledge and saying the cow hates having electronics strapped to his back.
If they really wanted to make the cows happy they would let them listen to some Moog music.
lucy has left the building. - see ya on the other side pup.
10 hours ago