[GreenKeys] Free to good home - M28 tape printer for 3/8" tape

[Jim Haynes]

> On 29 Jan 2014, at 6:22 PM, Bob & Linda wrote:
> 
> Does anyone know if this 28LA is the type that used to be used on the Stock
> Market Ticker Tape circuits.  I have never seen one quite like this one.
> 
> Bob Smith WB6ODR
> 
I don't remember if I replied to this already, or if I meant to and
forgot about it.

The old glass bell jar style of stock ticker like you see in the Monopoly
game was used until about 1931.  At that time they were replaced by a
Teletype model using a 6-level code and a printing mechanism that was
later used in the Model 26 page printer.  I don't believe this machine
has a Teletype model number.  Model numbers were more of a Bell System
thing.  Teletype designed some other stock tickers in the 1930s but
they were not produced.  The 1931 ticker used an inked roller for
printing - the thing looks roughly like a one-foot cube, with the type
wheel sticking out the front.

These tickers were used until 1965 or so when they were replaced by a
new Teletype ticker based on the aggregate-motion mechanism used later
in Model 37.  This is a type-box style of mechanism.  In the Bell System
this was called a Model 28 ticker, although it has little in common with
Model 28 and is really closer to Model 37.  Maybe the Bell System wanted
to keep the '37' number 'pure' and not allow it to be associated with
the stock ticker.