[GreenKeys] Building a KSR using today's technology?

[Randy and Sherry Guttery]

On 7/8/2012 3:24 PM, Mark T. Regan, K8MTR wrote:

They exist - and have for many, many years - though these 
days they are obsolete - often replaced by computers.  In 
the days before graphics - printers were combined with 
keyboards to make a computer Input / Output - called a 
"terminal".  Teletypes fell into this category when wired 
appropriately.  Paper use was an issue - so it was replaced 
with a CRT - and terminals were (for a time) referred to as 
"glass terminals".  As graphics became possible - rendering 
power needs increased to the point where computers 
(particularly personal computers) often took over the 
display function - still using a keyboard.

However - not all terminals went that route.  Check into the 
Texas Instruments Silent 700 Series - and clones by other 
manufacturers (most notibly Panasonic).  I don't recall the 
specific model number - but IIRC there was at least one 700 
model that could do Baudot (most of them could do 5/6/7/8 
bits, 300/1200 Baud - but ASCII only). Some of the later 
ones (again - notibly the Panasonic) could go from 110 to 
9600 baud - though they need handshake above 1200 baud. Some 
of the Panasonic terminals (4930??) have a socket for an 
"Software emulation cartridge" --  I've heard that those 
could be programmed to do a ASCII <--> Baudot conversion - 
though I've never tried that myself (I no longer have a 
Silent 700 Series - but I do have one Panasonic left - 
though it's the much simpler 4911).

best regards...

-- 
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
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