[GreenKeys] Rock and Roll Teletype 'experts'

[Tony Duell]

> Really? I would have thought most people here knew that Baudot's 
> teletype dates back to 1870, and was operational in 1877.
> His keyboard had only five keys, but it was ITU 1.
> Or do think it is little known because Britain were late adopters and 
> the US was on a different trail?

A bit later, but I have a set of 6 books entitled 'Modern Electrical 
Engineering' which I estimate date from between 1910 and 1920. These 
contain a description of the Baudot telegraph system with diagrams of the 
machinerey, circuits for the 'Quadruplex', etc. It appears to have been 
well in use by then.

Said books also contain a description of a lovely electromechanical FIFO 
system used to store train descriptors on the London Underground (and its 
associated binary to 1-of-n decoder) ...

-tony