DIY Record ...sort of

[Bill Cahill]

Those are the records I'm talking about. But, the label states 33 rpm.
Further, they are not microgroove.
Somewhere around here I have one cracked copy of one. They are shelac, and, have the same groove as 78 rpm records, use the same needle.
It's interesting that Newcomb was offering that speed on their transcription players in 1947, as well as several other compannies.
Also, some of the recording machines, including Recordio, were also offering 33 rpm as a recording speed as well as 78. Those also were not microgroove.
Same cutting stylus, and, playback stylus size. Remember, also, that manny transcription discs were 33 rpm, and, later became microgroove.
I also have some later 7" microgroove 16 rpm records, some in stereo. Yes, they are a different story from a different era.
Bill Cahill