[GreenKeys] Compact 28 KTR

[Jeffrey D Angus]

On 12/30/2014 7:52 PM, ken Schwieker wrote:
> How did they implement the Tempest feature in machines with selector
> magnets etc. 
Funny you should mention that.
In a recent posting I'd mention the TT-523A/GGC low level signaling
device. This was placed in series with the signaling cable on the back
of a Kleinschmidt. I'm sure there were variations for other machines.



-- 
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com

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