The typewriter adapter that I had was for a Selectric and the solenoids mounted under the keyboard so that I could still use the typewriter either by itself or as a computer printer.
I had a Selectric with a paper tape punch/reader. It had the solenoids built in. I made an interface that converted ASCII to whatever that code was. I wish I had kept it for sentimental value. It was slow but cool.
"The typewriter adapter that I had was for a Selectric and the solenoids mounted under the keyboard so that I could still use the typewriter either by itself or as a computer printer."