[GreenKeys] WU 1-A pics

[Duncan Brown]

On 25-Nov-16 23:33, Ed Sharpe Archivist for SMECC via GreenKeys wrote:
> Duncan is that 20 series   parallel  strip  tape  printer ( kind of 
> like a  14  but.... it  talks  parallel  not serial!   to work on a 
> table  with Nicks  multiplexer?
>
Ed,

The WU model 20, 21, 22 series strip printers (made by both Morkrum and 
Kleinschmidt Electric for WU) had five selector magnets and connected to 
a receiving multiplexer similar to the transmit one.
So, yes, a message sent over a WU 1A tape transmitters could have been 
printed out on a WU 21A strip printer.

The message could also have been printed out on a Morkrum M12 page 
printer, as it was also originally designed for mux service with five 
selector magnets. With the addition of a plug-in key board to the M12, 
it became a "direct to line" serial machine. The keyboard had a serial 
keyboard distributor (similar to what was used on the M11 and later on 
the M14 & 15). The keyboard also had a "receiving distributor" 
(serial-to-parallel converter) to allow the 5 separate selector magnets 
to operate from the serial line.

Duncan


---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus