[GreenKeys] WRU key code

[Russ Miller]

The Western Union supplied Model 28 Telex machines were rare. There were some in the very large customers main offices. Luckily, I was able to snag a Model 28 Telex when my office in NJ was closed.  

Western Union used a LABD-500 to supply the WRU function.  The LABD-500 is located in the base.  Interesting stunt box coding to prevent the local answer back from activating when the local operator selected FIGS D.


Sent from my iPhone

> On May 27, 2020, at 5:03 PM, Ethan Blanton <elb at kb8ojh.net> wrote:
> 
> WAYNE wrote:
>> There weren't too many 28's used as Telex but those who were had a
>> separate AB mechanism.  I cant remember what it looked like.  Same with
>> TWX 35's. 
> 
> Sorry to resurrect an ancient thread, but I just came across this and
> wanted to weigh in; the Model 28 answerback mechanism is detailed in
> this video (and the other videos in its series):
> 
>    https://youtu.be/0A1a9rW_XRs
> 
> It is a separate unit that mounts in front of the typing unit on the
> top of the keyboard unit, and is triggered either by contacts in the
> stunt box or by a contact under a HERE IS key on the keyboard.  My
> Model 28 is TWX, not Telex, so the WRU is on Figs C, not Figs D, but
> you can see the keyboard in this video as well.
> 
> I hope that's interesting to someone.
> 
> Ethan
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