> On May 1, 2020, at 11:31 AM, John Foust via cctalk <[email protected]> 
> wrote:
> 
> Were there any paper tape devices that did not use the sprocket holes 
> to move the tape?

A lot of high speed optical readers use capstans and pinch rollers.  But they 
still need the sprocket holes to be the source of the clock signal for latching 
the data.

        paul


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