[GreenKeys] Ever see one of these machines?

[pdwills at cedarknolltelephone.com]

The Regenerator drags up a major regret I have.  I saw a
rack of them in the Test Board in the PRR Pittsburgh station
in the late 1970s.  They were retired in place when I saw
them and long gone by the time I realized their
significance.

PDW

----- Original Message Follows -----
From: Jim Haynes <jhhaynes at earthlink.net>
To: greenkeys at mailman.qth.net
Subject: [GreenKeys] Ever see one of these machines?
Date: Tue, 25 Nov 2008 10:25:18 -0600 (CST)

> Some codes from an old errata sheet applying to many
> different machines
> 
> Multiple Reperforator MRPE
> 
> Non-Typing Selector (Model 14)  I haven't seen one of
> these but can
>     guess from the name that it is a Model 14 printer with
> the type
>     bars and tape handling removed, used to activate
> switch contacts
>     mounted over the pull bars.  This would be a
> forerunner of the SOTUS.
> 
> Regenerator Unit & Panel (RED)  There is a picture of this
> unit in the
>     1938 edition of Principles of Electricity...the AT&T
> "Green Book"
> 
> Multiplex Extensor Unit (AME)  An electromechanical
> time-division
>     multiplex was in the Teletype product line until the
> late 1930s.
>     This would be a device to connect a multiplex channel
> with a
>     start-stop line
>