On Fri, May 1, 2020 at 4:32 PM John Foust via cctalk <cctalk@classiccmp.org> wrote:
> Were there any paper tape devices that did not use the sprocket holes > to move the tape? Yes, both punches and readers. The Facit 4070 (and the N4000) punch uses a capstan and pinch roller to move the tape. It's driven by a stepper motor. Of course it punches the sprocket holes. As I said the other day several high-quality optical tape readers (Trend, HP2748) feed the tape with a capstan and pinch roller. They do take a timing signal from the sprocket holes of course. -tony > > - John >
