3M WHISPER WRITER TELEX
3M Whipser Writer TELEX to RTTY Conversion
Our 1984 Whisper Writer is very nice, but not too useful in its TELEX configuration. But with a little bit of reverse engineering and a new modem, we convert it into a Teletype and Radio Teletype (RTTY) tester. Which is much more useful (to us).
We give our Whisper Writer TELEX a second life as an RTTY.
KiCAD RTTY and TTY Modem Project
Note: the v3 schematics incorporates all the functional changes made for the final version. The PCB has not been updated though.