[GreenKeys] What is this thing?

Sam Hallas [email protected]
Mon, 14 Jan 2002 10:10:42 +0000


gil smith wrote:
> 
> Hi Ron:
> 
> When I researched early codes, I found that the Murray code came after the
> "original" (finger-activated) Baudot code, and before the ITA2/USTTY
> standard that we now call Baudot.  As I understand it, the Murray code was
> only used on early Creed machines.
> 
> from me:
> http://www.vauxelectronics.com/gil/tty/docs/smith--teletype-codes.htm
> 
> from Alan Hobbs::
> http://www.nadcomm.com/fiveunit/fiveunits.htm
> 
> from Tom Jennings:
> http://www.wps.com/texts/codes/index.html
> 

That's what I thought, Gil. See also Alan Hobbs' and my article at:

http://www.samhallas.co.uk/telhist1/telehist2.htm

where Donald Murray's code is dated 1902.

> Do you have a link to the Greenman web site?
> 

http://www.qsl.net/zl1bpu/

Must put a link from the BARTG pages if I haven't already. I'm in
correspondence with Murray about a book he's writing for the RSGB which
covers telegraph history.

Cheers,
Sam

> At 08:58 PM 1/13/02 -0500, you wrote:
> >Baudot is named for J.M.E Baudot and was used until 1910. The 5 bit code
> >(ITA #2)
> >was invented by Donald Murray of New Zealand during WWII. You can check this
> >out at Murray Greenman, ZL1BPU's excellent site. I think it is mentioned
> >that people still use the term Baudot and baud. The term "baud" will remain
> >in use for a long time. Thanks for your inquiry.
> >
> >Ron
> >K3MIY
> >
> >-----Original Message-----
> >From: [email protected]
> >[mailto:[email protected]]On Behalf Of sam.hallas
> >Sent: Sunday, January 13, 2002 3:08 PM
> >To: [email protected]
> >Subject: Re: [GreenKeys] What is this thing?
> >
> >
> >Ron Zond wrote:
> >>
> >> the gadget is a tape reperforator. It punches 5 bit Murray code (not
> >Baudot)
> >> onto a tape. it is used for highspeed TTY. After you type your message,
> >you
> >> feed it to a TTY machine, probably a Model 15. One of the joys (???) of
> >> early TTY was punching tape. Great for QSOs.
> >>
> >> Ron
> >> K3MIY
> >>
> >
> >Ron, I'm curious to know what you mean by "Murray code (not Baudot)".
> >
> >I understand that Murray's code was never adopted internationally and
> >that what is commonly known as Baudot is not Baudot's code either, but
> >is International Telegraph Alphabet No 2.
> >
> >Sam