I would suspect 21 minutes per side.
At 01:03 PM 2009-01-15, Marcia Segal wrote:
>Does the "Ampex 350 Recording Cassette 42" have a recording time of
>22 minutes/side? If it's a matter of era, these are probably vintage
>1960s, with a light and dark green label.
Richard L. Hess email: [log in to unmask]
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Quality tape transfers -- even from hard-to-play tapes.