A Guide on troubleshooting the Commodore PET 2001
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.
News and announcements related to the company
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.
Two new products! First, a replacement ingaurd ROM for the HP 3455A multimeter is now available. This is a drop-in replacement for the original custom HP ROM. Order here. Second, Batten and Allen DIP edge clip pins are now available for sale. These special pins allow a PCB to be made to plug securely into […]
I have updated the device list for the EPROM Programmer Universal Adapter. This update includes an important correction for the 1818-2269 ROM used in the HP 8620C sweep oscillator and includes new ROMs for the HP 436A power meter. Get the updated list here.
I have been selling ROM adapters for the Commodore PET-2001 since 2009. Over these last five years I have been honing my design skills on my many different replacement electronic parts and through that process I have realized that my adapters are much in need of an update, so here it is. This new generation […]
Well, 6540rom.com is finally in the 21st century with a new name (D’Asaro Designs) and this new WordPress based website. The old website is no longer updated but it is still available at http://home.comcast.net/~medasaro/6540rom.com/home.html
I have updated the device list for the EPROM Programmer Universal Adapter. The new devices include ROMS 1818-2269 for the HP 8620C Sweep Oscillator. Get the updated list here.
I have updated the device list for the EPROM Programmer Universal Adapter. The new devices include ROMS 1818-2272A and 1818-2271A for the HP 4161A LCR meter. Get the updated list here. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original posting date.
New Product! A programmer for the Motorola MCM2801 EEPROM is now availiable. Check it out here. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original posting date.
I have updated the device list for the EPROM Programmer Universal Adapter. The new devices include ROMS MK31000, 2316A, 8316A, MCM68316A, AM9217, MK34000, 8316, 9316, 2616, MCM68316E, AM9218, and 1818-2270. Get the updated list here. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original […]
I am releasing a new product called an EPROM Programmer Universal Adapter. This special adapter will allow you to read almost any vintage EPROM or PROM. Read all about it here. Note that this post was copied from the old 6540rom.com. The publication date has been modified to reflect the original posting date.