Archive by Author

Sale on ROM Adapters!

Due to excellent sales of the video adapters, I now have an overstock of the parts for the ROM adapters. I need to reduce my stock, so I am offering a sale. For a limited time only ROM adapters are availiable for only $25 each. However, when my current stock is gone so is this […]

Adapters are again for sale

All of the adapters are again for sale! I have finished my move across the country from Seattle to Boston. My Commodore and most of the rest of my electronics testing and assembly equipment moved with me, so I am set to build these again. Please don’t hesitate to email me directly or to check […]

Sales put on hold temporarily

Unfortunately, I have to cease sales of all adapters until September. I have graduated from the University of Washington with my Bachelor’s degree in electrical engineering and I am going to be driving across the country this summer before settling in Boston where I will be attending MIT. I am sorry for any inconvenience this […]

Service bulletin for PET ROM Adapters SN 1-5

It has come to my attention that my Commodore PET ROM adapters may not work in board location H5, H6, and H7 in all Commodore PET 2001 computers. Please read the service bulletin here for details for details. Note that this post was copied from the old 6540rom.com. The publication date has been modified to […]

Genuine Intel 2716’s!

I have gotten in a new shipment of 2716 ROMS. The next batch of adapters will ship with vintage (c)1977 genuine Intel 2716’s! These vintage ROMS looks great in a vintage PET. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original posting date.

The first Composite Video Adapter

The first PET composite video mixer is built and works well. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original posting date.  

The first 6540 ROM adapter

The first 6540 ROM adapter is built and it works perfectly! It is about 0.4″ taller than the old chip which is slimmer than my first calculations. A lot more info is coming soon. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original posting […]

The story of my PET 2001-8

I have been interested in vintage computers for years, and I have a large collection of Apple II hardware, but I had never ventured into the world of the PET. Hardware was just too expensive. Then, in the winter of 2009 I remembered that a family friend had given me the main board, upper case […]