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14 Oct 2023: A 13.8V, 7A switch-mode power supply with over-voltage protection.

28 July 2022: Added three new BASIC example programs to my VGA video card interface for the TRS-80 project page.

30 July 2021: A VGA video card interface for the TRS-80. I have finally completed the 77-page project doccument and have updated the project page accordingly. Phew!.

10 April 2021: 8-bit VGA video cards.

09 Jan 2020: Documentation for my TRS-80 model 1 clone is complete.

15 Sept 2019: Finally made a page for my discrete transistor Video Pong project.

6 Dec 2018: Commodore PET-2001 clone.

20 Jan 2017: Telefunken's bouncing ball in a box: an analog simulation.

26 September 2016 - project page for "A simple audio oscilloscope" uploaded. Link provided on home page under "Test and measurement projects".

21 October 2015 - preliminary project page for "A NAND gate-only frequency counter" uploaded. Link provided on home page under new title: "Test and measurement projects".

21 October 2015 - This progress log created.