The problem is corrosion….. Corrosion appears to be happening either directly under or nearby the various sized (but typically 5″ long) plastic runners that line the bottom of the large PCB modules. These...
Layout A (3 columns)
Layout B (1 column)
Layout B (2 columns)
Layout C (3 columns)
Corrosion near/underneath HP Logic Analyzer module plastic runners
The problem is corrosion….. Corrosion appears to be happening either directly under or nearby the various sized (but typically 5″ long) plastic runners that line the bottom of the large PCB modules. These...
Effects of upgrading SCSI2SD from v5 (4.8.3) to v6 (6.2.1) analysis HP 16700A
If you compare this graph with the previous one in this post, there’s a few things you should notice: First, the overall boot is happening about 1 minute quicker, with a fully loaded chassis coming in around 2:35...
Day 4 of my assembly of A500++ PCB
I finally got my PLCC 84 socket in from Mouser out of stock, had some trouble this time with defective caps from Mouser, and installed more EMI caps. Slow going…..made little progress on THIS project this long...
16700A internals w/ SCSI2SD v3.0 installed
See my fan upgrade post here on quieting those noisy fans.
See my DIY logic analyzer cart here.
Here’s a couple closeups of the SCSI2SD in action:
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...
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...
Layout C (4 columns)
Corrosion near/underneath HP Logic Analyzer module plastic runners
The problem is corrosion….. Corrosion appears to be happening either directly under or nearby the various sized (but typically 5″ long) plastic runners that line the bottom of the large PCB modules. These...
Effects of upgrading SCSI2SD from v5 (4.8.3) to v6 (6.2.1) analysis HP 16700A
If you compare this graph with the previous one in this post, there’s a few things you should notice: First, the overall boot is happening about 1 minute quicker, with a fully loaded chassis coming in around 2:35...
Day 4 of my assembly of A500++ PCB
I finally got my PLCC 84 socket in from Mouser out of stock, had some trouble this time with defective caps from Mouser, and installed more EMI caps. Slow going…..made little progress on THIS project this long...
16700A internals w/ SCSI2SD v3.0 installed
See my fan upgrade post here on quieting those noisy fans.
See my DIY logic analyzer cart here.
Here’s a couple closeups of the SCSI2SD in action:
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...
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...
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...
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...
Layout D (3 columns)
Layout D (4 columns)
