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…
Orchestra-85 Repro for the Model I
Who is it for? It’s a stereo music synthesizer with up to six octaves, 5 simultaneous notes (or voices), each of which can be assigned any of five instrumental choices (tone colour registers). Plays old /ORC music files. ONLY $USD60.00 + shipping
Model I Heavy-Duty PSU Kit (now with cables)
Who is it for? It’s for Model I owners who want a reliable power supply to replace the original ‘black brick’ which regularly fail after 40+ years of use. My kit comprises of the PSU circuit board, and the pictured discrete components. When it arrives you need to order the two transformers…
The difference between a single-sided and double-sided 5.25in disk drive head cleaner
https://www.youtube.com/watch?v=Qee27BLChoE
Coco RS-232C Interface
Who is it for? It’s for Coco owners who want a reliable high-speed RS232 port which leaves the bit-banger serial port free to connect a printer. My repro Coco RS232 Pak is fully compatible with the old R.S Deluxe RS232 program pak cat. no. 26-2226 but made from new components and with gold plated…
Model III/4/4P Orchestra-90 Repro
Who is it for? It’s a stereo music synthesizer with up to six octaves, 5 simultaneous notes (or voices), each of which can be assigned any of five instrumental choices (tone colour registers). Plays old /ORC music files. ONLY $USD60.00 + shipping
Model I/III/4/4P/4D Printer cable
Who is it for? It connects a printer to a Model I, III, 4, 4P, 4D or Tandy 1000 computer. ONLY $USD32.00 + shipping
Lowercase Kits
Two new lowercase modifications for the Model I Who is it for? It’s for Model I owners who want to add lowercase characters to their standard systems. Also if you have the early lowercase modification with no descenders or the flying ‘a’. In the case of Gendon3 you get three line descenders though…
Copy your FreHD images onto your SD card to make extra working images of existing operating systems.
https://www.youtube.com/watch?v=Z1B2rQZemc0
TRS-80 Expansion Interface click test explained
https://youtu.be/bAVbggazp0U