[GreenKeys] 28 stock ticker?

[Ken Wiebe]

That's cool. I wonder if those custom TTY's are documented anywhere.

On Tue, Jul 30, 2019, at 12:28, Jerry Murphy wrote:
> The stock trade information was manually entered into the quotation system from tickets which were received from
> the trading floor. Attached is a picture showing the operation. Note the custom Teletype keyboards and cabinets.
> The pic shows two keyboards plus the ticket loading and unloading arrangement.
> 
> Jerry Murphy
> 
>> -----Original Message----- 
>> From: Ken Wiebe 
>> Sent: Jul 30, 2019 11:57 AM 
>> To: Thomas Tillson via GreenKeys 
>> Subject: Re: [GreenKeys] 28 stock ticker? 
>> 
>> What was the source of the data being sent to the stock tickers (equipment used, process employed, etc.)?
>> 
>> This has me really curious about 'stock ticker networks'.
>> 
>> -Ken
>> 
>> On Tue, Jul 30, 2019, at 11:48, Jerry Murphy wrote:
>>> 
>>> Attached are two picture of the 900 stock ticker that I had. It started life
>>> as a Trans-Lux machine and had a slack tape control. (The Trans-Lux machines
>>> were a variant of the regular stock ticker. They printed on clear cellophane 
>>> tape instead of paper. The tape was run through an optical system and the 
>>> printed characters were projected on a screen.) I removed the slack tape 
>>> control and ordered a new cover from Teletype. Several other parts were 
>>> replaced and I ended up with this beauty. Front labels were available that 
>>> said either "New York Stock Exchange" or "Western Union." The Teletype 
>>> nomenclature on the mechanism is LP112TE making it part of the Model 28 line. 
>>> The ticker was sold some time ago.
>>> 
>>> Jerry Murphy
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> -----Original Message-----
>>> >From: "w9ddd at tapr.org" <w9ddd at tapr.org>
>>> >Sent: Jul 30, 2019 10:32 AM
>>> >To: greenkeys at mailman.qth.net
>>> >Subject: [GreenKeys] 28 stock ticker?
>>> >
>>> >I always assumed a newer stock ticker from Teletype would be based on the 28 tape printer. I was wrong. Looking at http://www.navy-radio.com/manuals/tty/jh/bsps/bsp/570series/573-140-100TC.pdf, I discover a different approach.. It's a 6 level 135 baud device the uses a type box instead of the wheel like on a normal tape printer. Also it types on 1" tape. Of course it has fractions as well as some other special charters.
>>> >
>>> >Wonder if anyone ever saw such a beast?
>>> >
>>> >John, W9DDD
>>> >
>>> >
>>> 
>>> 
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>>> *Attachments:*
>>>  * Teletype - 900 ticker A1.JPG
>>>  * Teletype - 900 ticker E.JPG
>> 
> 
> 
> 
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> 
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> *Attachments:*
>  * Teletype - 900 ticker - Data entry at the NYSE.jpg
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