[GreenKeys] wooden-cased TTY on ebay

[Sam Hallas]

Duncan M. Brown wrote:
>  Then to confuse matters more, we have the Wheatstone Perforators that
>  were mainly manufactured by Teletype Corp, but were refered to as
>  "Kleins" because Edwin Kleinschmidt invented it an made the first
>  ones.  (Where does the name "Wheatstone" come from??)

Shame on you, Duncan!! History lesson needed.....

Sir Charles Wheatstone, inventor of electrical telegraphy along with 
William Cooke. He later developed the method of sending high speed Morse 
using paper tape. Originally tape was punched by a manual punch using a 
stick held in each fist. Later Wheatstone developed a pneumatically 
powered punch. The tape was transmitted to line by a device like this:

http://www.samhallas.co.uk/bt_museum/morse_xmtr.jpg

I presume the 'Klein' is a further development allowing input from a 
keyboard - like this device from Creed:

http://www.samhallas.co.uk/museums/henlow/10_morse_keyboard.jpg

Cheers,
Sam