[GreenKeys] Teletype Corp. TT-36/GGA-1 ???

[Jim Haynes]

On Wed, 26 Nov 2014, Duncan Brown wrote:

>
> Maybe it ran 75wpm for increased thruput (vs. 60wpm), but the parts couldn't 
> sustain 100wpm reliably?

Yes.  75 wpm is as fast as the pre-Model-28 line was designed to go.
During WW-II there was some use of Model 15 equipment at 100 wpm, on
the theory that the war emergency justified increased thruput at
the expense of more frequent maintenance.  And I remember in about
1956 seeing a 15 printer running at 100 wpm at the FAA center in
Oklahoma City, but they wisely decided not to go ahead with that,
and buy Model 28 equipment instead.

>
> The TT-36 has a teletype Corp Code of "ZA0U2HG" on a metal tag. Does that 
> mean anything?
>
Doesn't mean anything to me.  In general Teletype had codes for products, 
like everything Model 28 starts with L, and there are suffixes for 
particular variations and further suffixes for things like stuntbox and 
character arrangement and paint color.  I suppose crypto equipment had 
similar codes but I don't know what any of them are.  Maybe that's one of
them.