[GreenKeys] Character wheel test bench + more goodies

[Duncan Brown]

Jim,

Not 6 level, but 42 !! - one wire for each key!

The Teletype Corp Museum book description says it used "A multi-wire 
(corresponding to each character on the typewheel) input". (see Book 4, 
pp 16-18)

The Museum book shows two other versions of this "Escapement Tape 
Printer". One has a 10-key keyboard on a cable. The other has no 
keyboard and includes the text "Testing means for positioning 
typewheel." in the description - which may be where the "Test set, print 
wheel" title on the website comes from.

Seems like a lot to go through just to test type wheels??  Or maybe it 
was more of a test bed to check out other ways of controlling a print 
wheel??

Duncan
K2OEQ

On 22-Sep-17 21:42, Jim Haynes wrote:
> Also note all of the Western Electric flat-type resistors toward the 
> back of the machine, and what might be Western Electric relays to the 
> left of
> the resistors.  The four-row keyboard suggests a 6-level code, hence a
> stock ticker sort of machine.  Wonder why the Western Electric resistors
> if the company had not yet been acquired by the Bell System.  But then
> Western Union also used a lot of Western Electric parts back then.
>


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