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> a simple mechanical acoustic coupler I get what you're saying, and I think that's plausible. But as far as I'm concerned, an acoustic coupler is/was a type o

> a simple mechanical acoustic coupler I get what you're saying, and I think that's plausible. But as far as I'm concerned, an acoustic coupler is/was a type of modem, into which you plugged an ordinary telephone handset. You had to have a telephone that had hemispherical mike and earphone; it didn't work with e.g. a trimphone. Expected performance: 9,600 bits-per-second.

riffic 3y ago
"coupling" then, whatevs. lemme see if I can dig up a patent number for the channel switcher wheel and put this pondering to rest. seems the inventing corporation is still around haha https://avidproducts.com/2023/12/08/celebrating-70-years-of-avid/ https://avidproducts.com/2023/12/08/celebrating-70-years-of-...