Mark — I was posting in the other thread about the same time you were. EPs were sold in the States. I've got several of them — some 45s and some 33 1/3s.

Can't say I remember the b/w notations — I'll have to look at some of the old records I've got — but I do remember the one-sided 78s. There were several of them in my mother's old crank Victrola. It was supposed to be mine, but got lost in the family fight when she died, so I'm not sure when they were made, but Mom and Dad were married in 1926 and I always assumed they were from about then.

As for the speeds of the turntables, an explanation that I remember only vaguely was something about finding the minimum speed at which the needles of the day would vibrate in the grooves to produce acceptable sound. The person explaining went into the physics of it, at which time my eyes glazed over, so I can't get much past that.

cheers,

david