Columbia BKT with 2/4 min?

[phonogfp]

Well, George, I don't think it was an "in between" reproducer, it was a 4-minute. An intermediate stylus size would not have worked for the 4 minute records, anyway. A too-large stylus playing a typically overcut (no land between the grooves) vertical recording is likely to cause echo at the best and skip grooves at the worst. Unlike the case with lateral recordings, a smaller stylus works pefectly well playing the wider groove of a vertical recording, so long as it doesn't cause excess wear. A proper vertical playback stylus sits on the bottom of the groove, not on the sidewalls as with lateral records. Columbia was selling Albany Indestructible 2 and 4 minute celluloid records by this time, both of which could be played with the smaller 4 minute stylus. Too bad if you couldn't play your Edison wax records on the Columbia machine, the answer was simple - buy new Columbia celluloid records!

I'm sure you're right, Greg.

George P.