[GreenKeys] Keyer KY-463A?

[Duncan Brown]

In that it mounts in the LESU, it is probably an interface to low-level 
or  MIL-188 signals. Or maybe an electronic polar relay?

Interesting that there are two _different_ '"KY-463" units. This one is 
apparently  the KY-463/FGC. But there is also KY-463/GRA that is a  
burst keyer for the AN/GRC-74.

Have fun,

Duncan
K2OEQ


On 2/16/2020 00:54, Robert Goff wrote:
> I ended up with three of these keyers in a box of random M28 parts -
> all of them marked DoD.  Looks like they fit into the M28 LESU.
>
> Not much information online - anybody know what these were used for?
>
> Thanks and 73,
> de Robert W7MKA
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