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Dataflyer 500 BUSS PAL validation results

Background As some of you may know, I’ve been working for awhile reverse engineering a DataFlyer 500 SCSI HDD controller from the 1990s. While I’ve had a working GAL replacement for the PAL for...

Hands-Free Debugging: Reviewing Gisler Precision’s Probe Holders

Disclaimer: While I purchased these myself at full price, Gisler did pay for shipping. This is my own opinion. If you’ve ever tried to hold multiple scope probes steady during debugging, you know how...

Building a replacement Amiga 500 power supply

Intro If you’re into retro computing, you probably know the Commodore Amiga 500—a beloved classic with surprisingly capable hardware for its time. But like many vintage systems, the original power supply...

Validating my dataflyer BUSS PAL replacement GAL

As some of you that have been following my reverse engineering efforts over the last few years, one of the tasks I took on was reverse engineering the BUSS PAL TIBPAL16L8-25 present in on the Expansion Systems...

Recapping a Samsung 204B monitor

In September 2006, I bought a Samsung 204B SyncMaster monitor for $320 plus tax. It was a 4:3 monitor, ideal for specific tasks like my Logic Analyzer Cart. In July 2024, the monitor stopped working and...

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