Monthly Archives: April 2023

Presentation: The Ghost of NABU Past with Leo Binkowski

This is a recorded version of “The Ghost of NABU Past” presentation created by NABU Software Engineering legend Leo Binkowski for the Vintage Computer Festival East that was held on April 14th, 2023 in Wall, NJ.

As an added bonus it’s a “director’s cut”, since Leo added some segments that he had removed to make sure to stay comfortably with the time he was allotted for his VCF East presentation.

A huge thank you to Leo Binkowski for redoing his VCF East talk and for the NABU Network site shout-out around the 37 minute mark.

Signal Monitor Board for Diagnostics and Repairs

In this video we check out Rudy’s NABU PC Signal Monitoring Board. This board is used for monitoring and diagnostics of the NABU Z80 based computer.

With Rudy’s board you can easily check voltages (+5, +12 and -12DC), clock signal, view and measure CPU related signals with ease.

This is an easy kit to build, plus Rudy provides the files for free so that you can make your own. The Gerber files are available for download at:

Thanks Rudy’s Retro Intel for this cool piece of NABU computer hardware. As we’ve been saying for months now: NABU forever!