I have completed a new project – a complete guide to repairing Sunbeam electric clock movements, complete with 3D printed replacement parts. Read all about it here. -Matthew

I visited the Hackaday at Artisans Asylum in Boston last week to show off my products and especially a soon-to-be-released paper tape punch interface box. It was all well received and they even included a link to D’Asaro Designs on their site along with a brief description and some photos. Check it out! http://hackaday.com/2015/07/27/the-best-of-boston-hackers-at-artisans-asylum/ -Matthew

Last Christmas I was browsing eBay and happened upon an auction for a single 3’x4′ schematic for part of the IBM PS/2 model 30-286 motherboard. I have long been a collector of the IBM PS/2 series and while some of the schematics are available in SAMS Computer Facts I had never seen schematics for the […]

I am excited to announce that there is a very nice article on me and my friend Mark Chilenski (who wrote gEEProg, the GUI for the 2801Prog and 2006Prog) in the latest issue of MIT Technology Review. You can read the article online for free here: http://www.technologyreview.com/article/534651/a-dormitory-laboratory/

Happy (somewhat belated) new year to all! To help celebrate the start of 2015, D’Asaro Designs is releasing two new products, one updated one, and a new piece of software. New this year: A handy device for testing the power supplies from a wide array of early PC computers including the original IBM PC, the […]

This update adds support for TI’s entire 24 and 28 series of PROM devices. Get the updated list here.

I am proud to announce the opening of the all new D’Asaro Designs Shapeways store! By partnering with Shapeways to gain access to their amazing array of 3D printing technology we will be making available a wide array of replacement mechanical parts for various legacy electronics equipment. As a first such product, we are now […]

Two in a row! This update adds support for the 2564 ROM, adds support for 2332 ROMs with an alternate pinout, notes that the 2364 may have mask programmable chip select lines, and makes some of the wording throughout the document clearer and easier to understand. Thanks again to a helpful customer for suggesting these […]

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 […]