[GreenKeys] Model 33 parts

[Jeffrey Golas]

For keying a loop, keep your eye on Ebay for a RTTY terminal unit (thats not army/navy grade (sorry Nick!)). The other easier thing is if youre good with arduinos, Ive had luck using a relay shield and the code from Hackaday.

There used to be some cool interfaces unfortunately the chips they used went obsolete due to lack of support for 45.5 baud.

There IS a blackbox rs-232 to loop adapter thats rated for 20ma but youd have to ensure the data youre sending is 5-bit baudot. One of these days Ill find the one I bought and test it out. (There is also a blackbox device called a "cap" that adapts ascii to baudot (or vice versa) that could be paired to it.

For your 33 thats easier; deramp.con has a serial adapter that fits right into the 33.

Jeff


> On Jan 20, 2023, at 10:19 AM, Eric Moore <mooreericnyc at gmail.com> wrote:
> 
> 
> Hi everyone, I have model 33s. One is largely non-operational but the electronics in the pedestal are an essential working part of a 60s computer system, so I am keeping it intact for historical purposes.
> 
> The other, I have fully repaired, but has some cosmetic issues. The top cover plastic has broken, and the clear window is badly cracked. Also, the working teletype had a modem in it, and the right, normally blank metal panel, the ink is damaged and buttons are missing.
> 
> Does anyone have, from a parts machine:
> 
> 1) model 33 partly clear hinged cover piece
> 2) model 33 right blank beige metal piece
> 
> I am also down one teletype logo piece from the front of a 33, but I expect no one has spares of that...
> 
> Also, I still owe $27 for paper to a greenkeyer, I have not forgotten! Just have to remember to slip it in the mail :)
> 
> Thanks all,
> 
> -Eric
> 
> P.S. I also have a model 14 teletype. It is missing some of the green key covers, and I need something to key the loop that can handle 120V 60ma. If anyone has anything for sell or suggestions for converting to RS232, I would love ideas, most options are a bit pricey. I have a loop supply I think will work, just need some power caps.
> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
>>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch
>>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
>>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
>>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jeffg at junknet.net