Articles from Techtravels Amiga Blog
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HP 16700A boot times and optimization
I’ve been playing with my HP 16700A Logic Analyzer and looking at boot times.
Originally the HP 16700A came with an internal SCSI drive, which was still functioning after 15 or 16 years. This SCSI drive was a 4GB Medalist Pro like a ST34520N or similar. This drive was noisy and I wanted to replace it with something solid state and hopefully gain some speed.
On building an A500++
Commodore Amiga 500 Plus
In the 1980s, Commodore made a newer version of their very popular Amiga 500, called the Amiga 500 Plus. It added a few things, namely newer versions of Kickstart and Workbench — both 2.04, 1MB of Chip RAM, and a motherboard-based Real Time Clock. The RTC was battery backed up, and is responsible for VARTA battery leaks. These batteries leak base (not acid, like most people assume) and this eats the PCB causing failures. There were also minor improvements of the custom chip sets, introducing the Enhanced Chip Set.
Expansion Systems DataFlyer Plus 2.1
Way back in about 1992, I finally had enough money (ok, well, enough credit) to finally expand my Commodore Amiga 500 to how I wanted it. I previously had an A501 memory expansion module and an external floppy drive that my parents had bought me for Christmas the year or two before. A major upgrade was a Microbotics VXL*30 accelerator card which included a 68030 at 25mhz, and whopping 2MB RAM which was just amazing for the time. I may make a post in the future about the specifics of that card.
Circle of HOPE 2018 presentation on HomeBrew 68K retro-computing
I delivered a presentation at Hackers On Planet Earth in July 2018 in New York City.
For a few different reasons, that presentation was cut short. I decided to rerecord the delivery of the presentation and make it available on my site. I have new found respect for people who make these videos. There’s multiple layers involved to get everything just right. I’m not sure I met that bar, but without further ado
Adding Yamaha YM2612 support has begun
So after much time talking about it, and doing research, I’ve finally got around to spending some time on adding Yamaha YM2612 support to the badge computer.
