Anyone have any info on a Tektronix X221CHT?

Jules Richardson jules.richardson99 at
Sat Sep 17 10:07:39 CDT 2016

On 09/16/2016 03:38 PM, Ethan Dicks wrote:
> On Fri, Sep 16, 2016 at 4:20 PM, Steven M Jones <classiccmp at> wrote:
>> On 09/15/16 22:24, Ethan Dicks wrote:
>>> Hi, All,
>>> I unearthed what appears to be a Tektronix X terminal, marked on the bottom:
>>> MODEL: X221CHT
>> I'd guess that the human-readable model is probably XP221...
> Hi, Steve,
> That's a great tip!
>> However you might find a usable PSU
>> under eBay #271338697806. Ouch, $80 + S&H.
> Nah.  Just going to jam some +5V into the right pins.
>> Tek made some very nice X terminals, I worked with them in the '91-'94
>> period.
> I've worked with some X terminals, just not these.
>> There's a Linux how-to for supporting/booting Tek X terminals that
>> includes the pinouts for the power connection. Good luck with the 16
>> year old links for software, however...
> That's a great document.  Very useful info in it.  Enough to test out
> the hardware.  Bummer about the NCD ftp server not answering (unless
> ftp is just blocked from where I am, which is possible).
> Anyone have a mirror of the old NCD repo?

This might be where the necessary NCBridge stuff ended up:

... depending on their definition of "patch". Makes me think of overlays to 
original software (i.e. the binary equivalent of a source file patch), but 
maybe it is a complete, self-contained archive of everything that you need 
on the host side.



More information about the cctalk mailing list