[GreenKeys] model 32 western union telex machine

[Jeff G]

As some with 1, er 2, er uhh, several of these, the loop has to be
backwards polarity to trick the call unit into thinking the call is
connected. Once you do it works like a normal loop and the CCU isn't really
used. Note its not a normal telephone, it was specific to the telex service
and was not connected to a POTS line.

Welcome to the club! Maybe if you're in earshot we can get on the air
tty-to-tty sometime! (I also occasionally operate TTY from Battleship NJ).

Jeff



On Mon, Jul 13, 2026 at 6:44 PM Dennis Kwasny via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> Hello to all,
>
>
>
> I acquired a model 32 ASR  that was used in western union telex service. I
> would like to try to restore and use it for amateur radio RTTY. The motor
> runs but I believe the call control unit is not operational and there does
> not appear to be any loop current to the selector magnets so the keyboard
> is not functioning at this time.
>
>
>
> I have tried to locate schematics (Navy Radio site) for the machine, but
> to no avail. Paul Cembura (Mr. Teletype) has told me that these machines
> were proprietary to western union so there isn’t any schematic information
> from teletype corp.
>
>
>
> My questions are:
>
>
>
>    1. Does anyone have schematics or wiring diagrams for a  western union
>    model 32 they would be willing to share?
>    2. Does anyone know what speed and baud rate the machine might have
>    operated at when it was used by western union?
>
>
>
> Appreciate any help in advance.
>
>
>
> Dennis
>
> WA8ZRK
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