In article , Paul Coxwell responded to TELECOM Digest Editor:
> [TELECOM Digest Editor's Note: One of my earliest terminal monitors
>> was the H-19 from Heathkit (also known as Z-19 if you bought it
>> already put together from Zenith. There as a little switch on the
>> back which allowed you to 'default into' 50/60 cps, and you could also
>> switch between 50/60 cps mode using keystrokes. PAT]
> I have a couple of H-89/90 CP/M systems stashed away in a cupboard.
> If I recall correctly, the terminal section within these is identical > to the H/Z-19.
And the story was that the H/Z-89s came with green phosphor screens so that the Zenith suits could tell the difference between a computer and a monitor.
-Hudson
[TELECOM Digest Editor's Note: Actually I had two Z-19's; one had a green phosphor screen, the other one was an amber phosphor screen. The green one came first; by the time I got the amber one, Zenith and Heathkit had added a wee bit of intelligence to the units, such as the time/date function, and a couple 'pages' of history and a few 'pages' for current work, etc. Or maybe those chips making all that possible came from outside vendors. I just do not remember. PAT]