Picked up this board last week on Ebay. It appears to have linear green Alps, yet is not listed in Deskthority's SKCL Green Alps page. Are these clones? Or did I discover a new board with SKCL Greens? Also, after Chyros' videos I can't help but pronounce Zenith "ZEN-ith" and the "z" in "ZKB-5" as "Zed-Kay-Bee-Five". Makes me chuckle every time.
The board came packaged with ZEN-ith's "Easy PC" computer in the late 80s. Love that logo. Connector appears to be of the 5 pin DIN variety. Since this board was only designed to work with the Easy PC I have no idea if it has any standard like XT or AT. Layout appears to be the same as the Zenith Z-150.
Certainly looks like SKCL Green Alps, has the tabs, slits, and everything. The keycaps are nice thick double shot ABS. The feel of the switches is exquisite, like pressing a keycap through butter, again borrowing from Chyros.
It comes with a solid metal backplate and a thick, textured top plate. The build construction is very solid. It also has two flip out feet which are activated by pressing tabs at the back of the keyboard.
The label sticker is rather cheap looking, and identifies the board as a "ZKB-5".
Another interesting thing is there are no homing bars, not even deep dishes. Zenith apparently didn't anticipate touch typists using their computers.
The lock switches are also SKCL greens and have double shot housings for the window, with some other process to produce the black lettering.