[GreenKeys] Stunt Box

[Richard M. Gillingham]

The FAA had a plug on the end of the cable to the electrical contacts on 
each stuntbox, so if a printer did fail, or was replaced for service or 
whatever the stunt box could be swapped out fairly easily.  there was a 
special double mount for the plugs from the LESU  and the stuntbox at the 
upper right on the printing unit.

Gil, W1RG
----- Original Message ----- 
From: "Jim Haynes" <jhhaynes at earthlink.net>
To: <greenkeys at mailman.qth.net>
Sent: Friday, August 19, 2011 2:42 PM
Subject: Re: [GreenKeys] Stunt Box


> And then there is the machine called the Model 28 Sequential Selector,
> which is a Model 28 printer that is missing all the typing parts and
> exists only to have a stunt box.  That took the place of the SOTUS from
> the Model 15 line, which was likewise a machine that could recognize and
> respond to a character or sequence of characters by closing a contact.
>
> In many cases the 28 printer with a stunt box did all the sequential
> selection necessary, so it replaced a Model 15 along with a SOTUS.
> The F.A.A. was a big user of this kind of stuff, using a received
> station's callsign, usually the three-letter airport code, to trigger
> transmission of a weather report from that station.  Also to
> have a printer print only the messages addressed to that station.
>
> The trouble with using a 28 printer this way was that if the printer
> broke you couldn't just plug a spare printer into the loop; you also
> had to transfer all the wires connected to contacts on the stunt box.
> So the F.A.A. went from a small box with a 6x6 array of pushbuttons
> to a set of panels that filled a whole relay rack.
>
>
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html