How to build an ASCII CRT terminal, circa 1967

[Al Kossow]

Magnetorestrictive delay lines and a charactron.

http://bitsavers.org/pdf/rca/terminal/70_750/70-01-752-U_Model_70_752_Video_Data_Terminal_Maintenance_Manual_Oct73.pdf

We got one (no keyboard) a couple days ago with the manual. I'm still cleaning it up. It had something nesting in it and
the inside has sunflower seed husks in it. It was made with plastic DIP ICs, no idea of the logic family. The keyboard
was made by IBM, don't know what character code it produces. Pretty funky if it encodes ASCII.