[GreenKeys] GreenKeys] FTGH - 3 ea. Western Union 2-B teletypes
John Nagle
nagle at animats.com
Sun Apr 10 13:35:59 EDT 2022
On 4/9/22 17:00, greenkeys-request at mailman.qth.net wrote:
> From: Nick England<navy.radio at gmail.com>
> Subject: [GreenKeys] FTGH - 3 ea. Western Union 2-B teletypes
> Cabinets need repainting - looks like one complete unit plus two parts
> units.
> Nick England K4NYW
> www.navy-radio.com
I've restored three of those machines. Don't need any more. Notes:
- One has a Holtzer-Cabot motor. That's a really early model,
probably from the 1920s.
One has a governed motor. The standard synchronous GE motor
from later machines is compatible. Plan on replacing those
really old motors. I do have one original Holtzer-Cabot
motor running, but it did arc over once. Tripped a GFCI.
Always plug these things into a GFCI.
- Plan on replacing all the original wiring, which is varnished
cloth and almost certainly cracked. But the wiring layout
on those is trivial. There's motor power and a current loop;
that's it.
- Add a fuse on the motor circuit. The original design
from 1926 lacked one, and protection was apparently supposed to
be provided by the WU table into which it plugged.
- Manuals here: http://aetherltd.com/manuals.html
John Nagle
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