Thanks to a helpful customer, I have updated the device list for the EPROM Programmer Universal Adapter. This update marks the 2364 data as being verified and corrects the 2332 data to reflect the fact that the chip select lines are mask-programmable and thus may be either active high or active low. Get the updated […]
I have been selling adapter to replace the MPS-6540 ROMs in the Commodore PET-2001 since 2009, but until now, there has not been a solution for the equally scarce MPS-6550 RAM chips. This product finally solves this problem once and for all by making a simple way to replace a 6550 RAM chip with a […]
I have written and posted a guide describing some of my techniques for troubleshooting faulty Commodore PET 2001 computers. If you have a sick PET, learn how to fix it here.
As a seller of replacement parts for the original Commodore PET 2001, I am frequently asked questions like “My PET won’t boot. Will your (fill in product here) fix it?”. I usually answer these questions are some troubleshooting steps / tips that the potential customer can use to try to narrow down the problem, but […]