[GreenKeys] Model 40, Anyone?

[Paul Kasley]

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.

-w9ts, E36736

On 6/12/2020 23:53, David I. Emery wrote:
> On Fri, Jun 12, 2020 at 09:10:36PM -0700, kn7sfz wrote:
>> And what might happen if you dropped the link to 300 or even 110bps??? Is
>> there some kind of buffer that would wait and print an entire line when
>> ready or would the CPS just drop?
> 	They had a big VLSI NMOS chip that did all that... and indeed
> it was a line printer, printing a line at a time from a buffer.   The
> chip figured out what letter on the chain was going by which hammers
> at any instant and fired them at an appropriate time to print the
> desired character.   This could take place at several points on a
> line at once (there were 80 or 132 hammers)...
>
>
-- 
"It became necessary to destroy the town to save it"