----------------------------------------------------------------
CDP1802's Heathkit H9
----------------------------------------------------------------
I love terminals. They're fun pieces of hardware, a bit dumb
sure but what's wrong with that? It's satisfying having a neat
box hooked to and displaying info from another neat box.
----------------------------------------------------------------
The Heathkit H9 is a pretty simple terminal. It doesn't do
anything fancy, you just have a 64x16 character display with a
simple 67-key ASCII keyboard. I/O can be set to an EIA, TTL, or 
20mA current loop interface. There's also parallel I/O for a
paper tape punch.

Mine has proven fairly reliable since getting it, built back in
the '70s by a former Raytheon engineer and his kid. I should
probably rework the power supply section, not having a capacitor
go bang would be good...
----------------------------------------------------------------
As-mentioned on the first "blog" entry for this site, the reason
pages are only 64-characters wide is because I'd maybe like to
use my H9 hooked to a RPi to attempt to edit a webpage. Would it
work well? Probably not, all the H9 knows are the characters of
an uppercase Signetics 2513. Would it be fun? Hell yeah.
----------------------------------------------------------------
Return to the Systems page
----------------------------------------------------------------