4 ms·

EDIT i'm wrong the speaker was inside the armrest. I wouldn't be surprised if the channel selector wheel was a simple mechanical acoustic coupler rotating to c

by riffic 3y ago

EDIT i'm wrong the speaker was inside the armrest. I wouldn't be surprised if the channel selector wheel was a simple mechanical acoustic coupler rotating to connect or cap upstream source tubes. I remember it as well flying in the late 80s or early 90s.

denton-scratch 3y ago
> 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-...