[GreenKeys] Re: my 28ASR

[Charles Ring]

jhaynes@alumni.uark.edu wrote:

> I agree that the LESU in the picture is of Western Union make.  However
> Teletype did use some of those Western Union polar relays in their own
> production; apparently it was an excellent polar relay.  Most of the ones
> I have seen were made by Automatic Electric, so it's interesting that
> yours is a Sigma.  (Western Union contracted out manufacture, so I guess
> Sigma was the successful bidder on some procurement.)
>
> That foam plastic sound insulation turned out to be bad news.  For a while
> in the 1950s they were using some kind of glass fiber pads under the
> Model 28 KSRs, but at some later date they apparently went back to felt in
> that area.
>

Mine also has felt on both ends of the tape holder frame - what good was it
there? When was the foam rubber used? It looked new when i got the machine
circa 1979.

Here is a humorous picture of my 28ASR in a surreal place for it, taken an
hour ago on its way to my basement ham shack:

http://home.dal.net/charlesr/ktchntty.jpg

73 de W3NU