deskthority

I am looking for the keyboard shown here, which was sold with the "Eagle I" computer by Audio Visual Laboratories in the late 70s. It uses a 25 pin connector!

Thanks,
Steve

That machine looks sick!

Keep in mind that you other 25 pin keyboards might use completely different communication mechanisms/methods. There just weren’t established standards for keyboard interfaces back then.

To clarify, are you looking for this specific keyboard or any 25 pin board?

Best of luck in your search!

With that many pins, my guess is that the cable carries wires directly to the matrix rows and columns. Many 8-bit computers did use the main CPU for scanning the keyboard.

If so, a replacement keyboard could be built knowing only the layout of the keyboard matrix: which could be found by inspecting the circuits of an existing keyboard's circuit board only visually.