White Badge XT Zenith Z-150?

idlethock · 19 Apr 2018, 09:09

I recently got this pristine Zenith Z-150 off of ebay with SCKL green alps. I was excited to have AT version of this board to use (and possibly swap the badges, but I dont have the tools for it)

But based on the layout (using the DT wiki) and how its not responding to my 5 pin din connector and either of my PS/2 connectors, I think I might have gotten a white badge XT? Is this rare, an actual thing or just a case swap?? It's a bit of a shame because I was hoping to have something that didn't miss key presses on a converter. At least the switches feel super clean and smooth. Wish I could use it more

Here's pics of the board, compared to my black badge Zenith atop with the yellower case.

seebart · 19 Apr 2018, 09:59

Hmm very nice indeed, I've never seen one like this. Looks better than the black badge version too.

Chyros · 19 Apr 2018, 10:41

Yes, this very much looks like an XT version with the AT badge. It also still uses the PBT caps. Interesting. I don't suppose there's a date stamp or sticker anywhere?

Chyros · 19 Apr 2018, 13:50

Guess what, here's another one! And actually bundled with an XT, even.

https://www.ebay.com/itm/Vintage-Zenith ... SwhCJazpBW

idlethock · 19 Apr 2018, 18:09

Chyros wrote: Yes, this very much looks like an XT version with the AT badge. It also still uses the PBT caps. Interesting. I don't suppose there's a date stamp or sticker anywhere?

I checked the back, but there was no date stamp/sticker. There's only some kind of copyright date on the inside which says 1985 but I'm not sure if that's indicative of anything.

Alas, the search continues for the AT.

Engicoder · 19 Apr 2018, 18:19

Based on the date codes on the logic chips, it is from 1987 at the earliest.

seebart · 19 Apr 2018, 18:36

Engicoder wrote: Based on the date codes on the logic chips, it is from 1987 at the earliest.

I need to get one of those.

idlethock · 19 Apr 2018, 19:53

Chyros wrote: Guess what, here's another one! And actually bundled with an XT, even.

https://www.ebay.com/itm/Vintage-Zenith ... SwhCJazpBW

I saw that one too! And the fact there's now a black label one with "AT" in the description even though it's not is bothering me more than it should.

https://www.ebay.com/itm/Zenith-Data-Sy ... SwqjNa2L7l

Also the plug is in such awful shape!

seebart · 19 Apr 2018, 19:55

Yeah looks pretty good and it's got SKCL greens. That DIN plug looks like it survived a war or something. Corrosion.