deskthority

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.

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

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?

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

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

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.

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

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.

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!

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