[GreenKeys] Decoding RTTY for a Teletype with a Computer / Want to Buy

[Nick England]

A mechanical encoder (32 keys to 5 levers) feeding a mechanical
parallel-in/serial-out shift register (distributor) feeding electrical
wires to a mechanical serial-in/parallel-out shift register (selector)
feeding a mechanical decoder (5 levers to 32 type bars/pallets). Plus
miscellany like shift, LF, and CR. More or less.

As an EE, I am always awestruck by this marvel of mechanical engineering.

Nick

On Wed, Nov 4, 2020 at 4:59 PM Dave Horsfall <dave at horsfall.org> wrote:

> On Sun, 1 Nov 2020, Richard Knoppow wrote:
>
> > A Teletype is really a sort of mechanical computer. [...]
>
> The best description I've seen is to think of it as a mechanical shift
> register; the bits get shifted in one by one, then slammed out to the type
> basket.  Happens in reverse on sending, with the keys setting up the bits
> to be shifted out.
>
> A while ago I posted an URL to a nice animation that showed the mechanism
> quite clearly, but now I cannot find it.
>
> -- Dave VK2KFU
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-- 
Nick England K4NYW
www.navy-radio.com
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