[GreenKeys] Soviet Teletype

[Duncan Brown]

The Cyrillic coding was done in a logical manner - by sound of the 
character (as much as possible). So 01010 types an "R" in Latin (11111) 
mode and a "P" in Cyrillic (00000) mode.  There are a couple of Cyrillic 
characters that must be typed in the Figures (11011) mode, but the mode 
switching is automatic (just like the top row numbers).

Enclosed is a chart of the code (thanks to Henning)

Have fun & Happy New Year,

Duncan
K2OEQ

On 28-Dec-16 23:49, Christian Gauger-Cosgrove wrote:
> On 28 December 2016 at 21:15, drlegendre . <drlegendre at gmail.com> wrote:
>> I'm trying to make sense of the keyboard. Most keys have dual (literal)
>> Cyrillic and Latin character markings (for instance, 'Deh' and D, 'Hah' and
>> H) but some have odd pairings, like 'Ekratkaya' + J or 'bl' (hard sign) + Y.
>> And others like 'Sha' and 'Shcha' have their own individual keys.
>>
>> What's going on there?
>>
> It looks to be the MTK-2 encoding:
> <http://www.sensi.org/~alec/locale/other/mtk-2.html> My ability to
> Russian is non-existent, but from what I can tell, letter shift works
> as expected, figure shift also works pretty close to one's
> expectations for ITA2 (not USTTY), though the bell character on FIGS J
> has been replaced by ю ('yu'), and the national use characters (FIGS
> F,G, and H) are also Cyrillic chracters. Where things get interesting
> is that sending a NULL works as a third shift, putting the machine
> into Cyrillic mode, where the keys now produce Cyrillic characters
> instead of Latin. Though if you study the character set you'll notice
> that the MTK-2 code only encodes 30 of the 33 standard Russian
> Cyrillic characters, and thus it lacks: Ё ('yo'), Ч ('che'), and Ъ
> ('myagkij znak').
>
> The keyboard itself is the standard Russian typewriter layout (which
> corresponds to 'JCUKEN' for us who use the Latin alphabet
> exclusively). Fun fact: That's the usual keyboard layout for Microsoft
> Windows in Russian. The JCUKEN layout was also the one used in the
> Elektronika UKNC computer:
> <https://upload.wikimedia.org/wikipedia/commons/d/d3/UKNCkeyboard.png>
>
> Cheers,
> Christian



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