How to build an ASCII CRT terminal, circa 1967

Mike Stein mhs.stein at gmail.com
Wed Aug 31 11:35:07 CDT 2016


Looks like the folder name changed from 70_750 to 70_752:

----- Original Message ----- 
From: "Eric Christopherson" <echristopherson at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Sent: Wednesday, August 31, 2016 12:09 PM
Subject: Re: How to build an ASCII CRT terminal, circa 1967


> On Wed, Aug 31, 2016 at 10:15 AM, Al Kossow <aek at bitsavers.org> wrote:
> 
>> Magnetorestrictive delay lines and a charactron.
>>
>> http://bitsavers.org/pdf/rca/terminal/70_752/70-01-752-U_
>> Model_70_752_Video_Data_Terminal_Maintenance_Manual_Oct73.pdf
>>
>> We got one (no keyboard) a couple days ago with the manual. I'm still
>> cleaning it up. It had something nesting in it and
>> the inside has sunflower seed husks in it. It was made with plastic DIP
>> ICs, no idea of the logic family. The keyboard
>> was made by IBM, don't know what character code it produces. Pretty funky
>> if it encodes ASCII.
> 
> 
> That URL redirects to
> http://www.mirrorservice.org/sites/www.bitsavers.org/pdf/rca/terminal/70_752/70-01-752-U_Model_70_752_Video_Data_Terminal_Maintenance_Manual_Oct73.pdf
> , which is showing a 404.
> 
> 
> -- 
>        Eric Christopherson


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