March 2022
I talk about the power supplies which came with the Model III and 4 computers, why they were chosen by Tandy, and which ones are good and worth keeping and which are just not worth wasting time with.
Repro FDC and Serial cards for the TRS-80 Model III and 4NGA
Who is it for? These are repro standard replacement floppy disk controller (FDC) and Serial (RS-232-C) boards for the Model III and 4 (non-gate array versions). Both come with new white cables. ONLY $USD99.00 and $USD79.00 respectively + shipping.
December 2021
I do a quick repair and restoration of a Model 4 system supplied by a customer in only a couple of days, and I talk about repro Model III/4 floppy controllers and serial interfaces I am now making, as well as the white-cable renew kits for Model III and Model…
September 2021
I talk about bus connector fatigue which affects some Model I/III/4/P/D computers and what can be done about it. I talk about a problem with my Model I heavy-duty power supply kits and how to fix it to operate properly. I also finish the Super-Micro II.
June 2021
I talk about how to fix video non-synchronisation problem which afflicts some Model 4 and 4P Non-Gate Array computers, Part 2 of Building the Super-Micro II, and adding extra floppy drives to a two-drive Model III or 4 which had a hard drive or FreHD.
March 2021
I start Building the Super-Micro II, a Model 4D with 4cellerator, hi-res graphics, and 3.5in disk drives. I talk about the Type-II HDA, the card needed to connect F48 to an 8in TRS-80, which is also needed to connect a primary hard drive to the same computers.
December 2020
I talk about new products for 2021: Alpha-Thing joystick interface for Model I, Goldplug-80 repro for the Model I, and F48 for the 8in TRS-80s, and RFI shield for 4cellerator. Part 5 (the last part) of the Model 4 mouse project.
September 2020
I talk about the 4cellerator I make and sell, it’s the repro of the XLR8er processor upgrade for the Model 4, and Part 4 of the Model 4 mouse project.
June 2020
I talk about the numerical keypads on the Model I, Part 3 of the Model 4 mouse project, and I talk about some complex upgrade projects.
HD63C09E CPU Upgrade for Coco 3 (or 2 or 1)
Who is it for? It’s for Coco 3 owners who want to upgrade the processor from a 68B09E to the Hitachi HD63C09E to take advantage of increasingly advanced new software like Nitros/09 and new games from Nick Marentes. I can upgrade your CPU, or CPU and re-cap the motherboard at the same…