[GreenKeys] Looks like Stroboscopically-tuned Teletype Baudot Test-Set

[DR HOUSE]

Actually Teletype made a lot of these DXD Test Sets.  Army, Navy, Air  
Force, and Bell System.  Not sure if WUTCo used them as they preferred  
their own test sets.
The really rare test set is the DXD 400 which looks similar and does  
the same things, but for 8 Level ASCII. I understand Teletype did not  
want to build it but the DOD insisted on it.

Don
K9TTY


On 22 Mar 2012, at 10:46 PM, David Burns wrote:

 From what I can see in these ebay pictures this unit appears to be a  
stroboscopically-tuned distortion test-set for 5-level Baudot  
equipment...real Teletype engineering...all mechanical, electrical, no  
electronics.  I'll bet they didn't make many of these.

Of course I'm guessing from the labels on the control switches and the  
fact there's a little window at the start of the fifth bit that seems  
to be part of a rotating plate on the front panel.

Anybody out there actually use one of these in real-life?

-Dave in Boston
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