[GreenKeys] Teletype DRPE tuned reed mechanism

[Eric Moore]

Thank you Nick! Those images are great, I will definitely incorporate them.

On Mon, Dec 28, 2020, 7:33 AM Nick England <navy.radio at gmail.com> wrote:

> Cool! Can't wait to see your video.
> Yes there was an ARPE (specification dated 1953) but probably never went
> into production.
> The BRPE manual 215B has a 1952 copyright date, although I only have a
> copy of the 1965 version.
>
> The BRPE was used in large torn tape relay centers to make copies of tapes
> - in a process called message segregation, an incoming message with
> multiple addresses would be duplicated so there was a tape for each
> outgoing channel, You can see some BRPEs in this photo from NAVCOMMSTA
> Greece - the BRPEs are wall mounted above the tape readers (transmitters).
> http://www.navy-radio.com/commsta/greece/rj2-11-3.JPG
>
> This assemblage of tape punches was sometimes called a "tape factory" -
> the AN/FGC-73 message routing system had up to 20 BRPE punches running
> simultaneously at 850wpm.
> http://www.navy-radio.com/tty/relay/fgc73-spec-01.JPG
>
> The BRPE was also commonly used in typesetting applications (6-level
> tape).
> The BRPE was a computer peripheral before mag tape was affordable
> (8-level).
> Probably part of CNC tape generation systems?
> And finally it was part of the high-speed tape-to-tape transmission
> systems.
>
> http://www.navy-radio.com/manuals/tty/sales/brpe-descr-6410.pdf
>
> $891.40 according to a 1970 price list
>
> I am still looking for a 5-level BRPE or 5-level punch block. I have a
> 6-level BRPE to trade.
>
> Happy New Year to all
> Nick England K4NYW
> www.navy-radio.com
>
>>
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