[GreenKeys] how did the ap and upi teletypes motor on and off? i do not see extra stuff

[Sheldon Daitch]

Ed,


to the best of my knowledge, AP M-15/20 machines in North Carolina and Georgia ran the motors 24/7.

I think to have any kind of motor controller was simply another failure point and the machines were pretty much plain jane.

Thinking about this, there really wasn't that much downtime on the usual wire circuits.  Maybe 5% of the time, the machines were in idle status?

At VOA, we did have motor controllers on the M-28s,but those machines were idle probably 18 hours per day.


73

Sheldon



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From: GreenKeys <greenkeys-bounces at mailman.qth.net> on behalf of Ed Sharpe Archivist for SMECC via GreenKeys <greenkeys at mailman.qth.net>
Sent: Tuesday, April 5, 2016 9:05 AM
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Subject: [GreenKeys] how did the ap and upi teletypes motor on and off? i do not see extra stuff

how did the  ap and upi  teletypes motor on and  off?  i do not see extra  stuff to so  this?

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