@CrystalHunter1989 No Morse code here... This one runs the 1963 version of ASCII. Earlier models used a 5-bit code derived from Baudot. The biggest difference is the use of variable length symbols in Morse (either American Morse or International Morse) versus fixed-length MARK and SPACE transitions... Thanks for commenting, though!
@neuralwarp Parity bit is always set -- if the bit is clear, you've got a problem... Not particularly useful in detecting "real" errors, but it let the system wonks claim that they "supported" parity checking!
The ougoing tape was used to be ripped off and rolled up in a 8 shape around the thumb and the little finger of one hand...it was the first thing you had to learn when working with TTY!.
Well, the typing element is actually a drum. There's two axis of motion -- vertical and radial -- that determine which character slug is pressed on the paper. Not sure why they picked this approach -- it probably had something to do with patent law. At least it's easier to understand than the IBM Selectric "Golf Ball" mechanism. Thanks for commenting.
Thanks. It's pretty usefull too, especially since the iMac doesn't have a floppy disk drive... Great for offline storage of text files, email, photos, etc. :-)
Got a good beat, easy to dance to. I gave it about an 85.
polyestershorts 1 month ago
I used to operate one of those for Blue Star Line in the early 80's. It was quite a challenge to prepare a message. The first email!
sfnorm 4 months ago
Makes me want to learn Morse code...
CrystalHunter1989 1 year ago
@CrystalHunter1989 No Morse code here... This one runs the 1963 version of ASCII. Earlier models used a 5-bit code derived from Baudot. The biggest difference is the use of variable length symbols in Morse (either American Morse or International Morse) versus fixed-length MARK and SPACE transitions... Thanks for commenting, though!
Paleoferrosaurus 1 year ago
You forgot to turn your parity checking on.
neuralwarp 1 year ago
@neuralwarp Actually, It's set to "mark" parity!
Paleoferrosaurus 1 year ago
@Paleoferrosaurus Ooh, that's a new one on me. How does "mark parity" work?
neuralwarp 1 year ago
@neuralwarp Parity bit is always set -- if the bit is clear, you've got a problem... Not particularly useful in detecting "real" errors, but it let the system wonks claim that they "supported" parity checking!
Paleoferrosaurus 1 year ago
So very nice.
jtel 1 year ago
The ougoing tape was used to be ripped off and rolled up in a 8 shape around the thumb and the little finger of one hand...it was the first thing you had to learn when working with TTY!.
Januacaeli 2 years ago
Any chance you could provide the circuit you used for interfacing between the current loop and RS-232
benjamjamin2000 3 years ago
Yes I would like a diagram also so I can
make my teletypewriter run off my com-
puter. James
lobasa2001 2 years ago
Why do the ttys use the huge clikity clack special tyers aand not daisywhells or little arms?
6364gg2 3 years ago
Well, the typing element is actually a drum. There's two axis of motion -- vertical and radial -- that determine which character slug is pressed on the paper. Not sure why they picked this approach -- it probably had something to do with patent law. At least it's easier to understand than the IBM Selectric "Golf Ball" mechanism. Thanks for commenting.
Paleoferrosaurus 3 years ago
Superb! Love it. What a great unusual combination of hardware.
wisteela 3 years ago
Thanks. It's pretty usefull too, especially since the iMac doesn't have a floppy disk drive... Great for offline storage of text files, email, photos, etc. :-)
Paleoferrosaurus 3 years ago
That's one way of doing it! I've got a USB floppy drive on mine.
wisteela 3 years ago
What program are you using to interface with the tape punch?
marshalauth 3 years ago
Chipmunk Basic by R.H. Nicholson.
Paleoferrosaurus 3 years ago