[GreenKeys] DURA Selectric ASR terminals free

[Robert Nickels]

On 12/17/2019 2:12 AM, Paul Birkel wrote:
> Taming the I/O Selectric (June 1978 Issue #18 part 1: hardware interface and
> continued in July 1978 Issue #19 Part 2: software):
> 	https://archive.org/details/kilobaudmagazine-1978-06
> 	https://archive.org/details/kilobaudmagazine-1978-07

  Boy that title sounded familiar and sure enough, that's the circuit I 
used.   Very clever how the hardware was so minimal yet worked just 
fine.   I wouldn't have known enough about the IO Selectric to figure 
out how to use the CK line that way ;-)    It would be easy to use an 
Arduino to drive this logic nowadays and have a serial interface, but 
no, I'm not interested in going back there!

It is a kick to look back thru the early days of "home computers" in 
these old Kilobaud magazines, however.  All of Wayne Green's magazines 
had a good combination of hardware, software, educational, and industry 
information.   I even saw a product announcement I wrote back in '78  ;-)

73, Bob W9RAN