Anyone have any info on a Tektronix X221CHT?

Ethan Dicks ethan.dicks at
Fri Sep 16 15:38:24 CDT 2016

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:
> 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?



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