Zebra Keyboard Beeper
Stewart Newfeld, July 30. 2026
In response to recent inquires asking if I had any of my original 1980s Zebra-desinged products for sale, my answer was pretty much that I had little to nothing left. However I've decided to start the process of putting together documentation for those designs and formally making them open-source. I think the first product sold was the ZX81/TS1000 keyboard beeper, so I am starting there.
I personally don't have posession of either of the Zebra Keyboard Beppers.
The first version of the keyboard beeper from the Zebra catalog.
The Authoritative Website for Timex/Sinclair Computers
https://www.timexsinclair.com/product/keyboard-beeper-4/index.html
best photos
Peliminary schematic from reverse engineering photos of second Keyboard Beeper.