[GreenKeys] Morkrum M12

[epvgk at limpoc.com]

On Sat, Dec 06, 2014 at 02:24:11PM -0500, Duncan Brown wrote:
> Speaking of parallel operation, the AWA just got in a couple of M12
> printing telegraphs.  They are apparently parallel operation, but
> when reading about the M12, RX & TX distributors are often
> mentioned.  I assume these distributors were for parallel to serial
> (& vice versa) conversion.  When did the standard change from
> parallel to serial data?  Late 1920s??
> 
> Got brave and put power to the M12 KSR (it had a new power cord).
> Both motors ran and keyboard operated but printer did not run open.
> With parallel operation, I guess printer would run closed until it
> got a "print" command on the 6th bit??
> 
> One M12 is an RO and has an "Associated Press" label on it. The
> other has the keyboard and is mounted on an iron table.  Also at
> least one WU 21A and a TS-383 distortion test set.  The mystery
> TT-36/GGA-1 was part of this donation.  Still unpacking boxes.
> 
> have fun,
> 
> Duncan Brown, K2OEQ
> USASA  31J30

Interesting to see pre-M15 era equipment. I wonder what that is printed on
the paper sitting in it?  Always curious about remnants from their original
use...


eric