Date: Thu, 23 Jul 2026 13:07:40 -0400
From: Paul Wills <pdwills@cedarknolltelephone.com>
Subject: Re: [GreenKeys] Teletypes and Railroads

The attached article deals, primarily, with the PRR telephone plant from
1925 but there is a description of the "printing telegraph" equipment
used towards the end.

And to think I was around in the late 1970's to see the end of the TTY
network (In the contemporary "PO" office.)

PDW

On 7/23/2026 11:55 AM, Aidan Riley via GreenKeys wrote:
> Good afternoon all,
>
> I'm interested in learning more about the history of teletype use by
> railroads. Does anyone have resources they would recommend reading?
>
> Thanks and 73,
> Aidan W9POG

-------------- next part --------------
A non-text attachment was scrubbed...
Name: PRR_Wire_System_1925.pdf
Type: application/pdf
Size: 3108362 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20260723/f1ccfc4e/attachment.pdf>

------------------------------
Here are some interesting pages out of a Pullman Company system manual I have.
-Jon N5MHI