[GreenKeys] stock ticker tty

[Duncan Brown]

Wayne,

Yes, it was apparently 6-level, but not obvious why, as there are only 
64 slots in the type box.  Maybe the 6th bit was for LTRS/FIG shift, to 
speed things up?

Document 
https://www.virhistory.com/navy/manuals/tty/jh/bsps/bsp/570series/573-107-100TC.pdf 
gives some description.

Have fun,

Duncan
K2OEQ


On 4/14/2025 12:12 PM, WAYNE wrote:
> Serviced some of these weekly while at Western Union in Springfield, 
> MA.  They had re-ink bottles for the ribbons.  I think they used a 6 
> level code, but not sure.
> I do remember the purple fingers I came home with.
> When I moved to Wichita, KS another tech serviced the older box style 
> tickers for commodities market.
> The Stock offices had Trans Lux or Trans Jet displays and I helped on 
> the service of those.
> The old gents that hung around the Stock offices all day were helpful 
> with diagnosing troubles.  I remember them wondering if the Dow Jones 
> would ever get to 2000.
> 73,
> Wayne
> KB1FDW
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20250414/805ef394/attachment.html>