[GreenKeys] 8-Level TD?

[Nick England]

I think I still have a M35 8-level TD in the basement
http://www.navy-radio.com/tty/misc-1306/DSC01889.JPG
http://www.navy-radio.com/tty/misc-1306/DSC01886.JPG
http://www.navy-radio.com/tty/misc-1306/DSC01887.JPG

But I am a little uncertain about what you need - not really the whole TD
tape reader, but just the parallel-to-serial converter section so you can
transmit serial data externally ?

I'm sure Teletype had a gadget to do that but not sure of what it's name
is, probably just distributor.... AHA! - M35 Multiple-Wire Distributor
http://www.navy-radio.com/manuals/tty/jh/bsps/bsp/570series/574-237-100TC-Iss1.pdf


I'll look in the basement, but I don't think so...

cheers,
Nick  www.navy-radio.com


On Fri, Nov 22, 2013 at 1:15 PM, Cory Heisterkamp <coryheisterkamp at gmail.com
> wrote:

> Hey Guys,
>
>
>
> Looking for some brainstorming here. For the last couple years I’ve been
> planning on building a computer entirely out of relays, with minimal
> support from vacuum tubes, Dekatrons, etc. But no transistors or IC’s
> allowed! I have most of the design worked out and plan on using my ASR33
> for the terminal. Life would be so much simpler if the communication were
> parallel, but that feels like a bit of a cheat (I see why Flexowriters were
> so popular back in the day for computer work). I have a Model 28
> Receiving-Selector which was Teletype’s version of a serial-to-parallel
> converter. Did they ever make an 8-level version?
>
>
>
> My idea is this… Basically, my output buffer holds a byte at a time in 8
> relay latches. When ready to send my data out to the world, the holding
> magnet of the distributor could release, the distributor would effectively
> “sample” the state of each of the 8 latches, and as it returned to the home
> position, trips the reset line on the buffer to clear it and it’s ready for
> the next byte to be loaded.
>
>
>
> The trick is finding an 8-level piece of equipment to start from. Any
> thoughts?  -Cory
>
>
>
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