[GreenKeys] Model 40, Anyone?

[David I. Emery]

On Sat, Jun 13, 2020 at 07:59:07AM -0500, Paul Kasley wrote:
> Actually, at least on the early production, PMOS, manufactured in the T3 
> processing area at 5555 Touhy. Tag Waggener's autobiographical 
> book"Teletype-We Made That Data Move" relates the struggles to get 
> processing yields up.

	Getting old, memory fades... I had the schematics of my machines
and did remember it wasn't CMOS... seemed very early generation even
in the late 70s...

	I do remember the prints and manual had a surprising amount of
detail about how the print electronics worked including timing diagrams
and notes about how the stuff processed data.

	And there were multiple DIP switches for setting slightly different
operating modes...


-- 
  Dave Emery N1PRE/AE, die at dieconsulting.com  DIE Consulting, Weston, Mass 02493
"An empty zombie mind with a forlorn barely readable weatherbeaten
'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
celebration of what could have been, but wasn't and is not to be now either."