Author Archives: admin
About admin
Twitter @Project_AVRPutting My Foot Down
I can’t say I’m a kean games player exactly, but after receiving Call of Duty: Black Ops 4 free with my new PC’s processor, I thought I’d give the game a go. I did enjoy it for a while but … Continue reading
A Real Groaner
Today, I got a chance to build up the latest version of the Morse Code Practice Oscillator, version 2.04. I had hoped that this would be the final one and I could publish all the files associated with it. But … Continue reading
It’s The Final Countdown (I Hope)
The last version of the Morse Practice Oscillator has arrived. v2.04 StAR Edition (St Richards Amateur Radio club). They look really nice, and because I took the opportunity to panelise them, I got 20 of each board. They snap off … Continue reading
More Oscillations
The Morse Practice Oscillator boards finally arrived! Sometimes I dispair my orders will ever get from China to the UK without incident. I think I may use the DHL option more often. Anyway, having unpacked the new boards, I built … Continue reading
Oscillator Update
I successfully completed the Twin ‘T’ Oscillator, original by Mike Maynard – K4ICY. It’s a great circuit and sounds really good. Much better than a raspy 555 version. Mike has been kind enough to put a link to my project … Continue reading
Radio Network
I’ve been a licenced radio amateur since 1993. My callsign is G0TDJ. Morse was always my first love in radio although I have tried many other modes. Recently, ‘Network Radio’ was drawn to my attention by an article in a … Continue reading
You’re just Multi-faced
A lot has been going on lately so I thought I’d update the blog with some of it. Starting with a small announcement. I secured the domain www.ProjectSPECCY.com It currently re-directs here. I am unsure as yet whether I will … Continue reading
Refurbishing a 48K Rubber Keyed Sinclair ZX Spectrum – Pt.6 Reassembly
It was finally time to reassemble the machine. I had one last cursory check of both sides of the board, just to make sure it hadn’t picked anything up that may cause an issue and placed the board in the … Continue reading
Refurbishing a 48K Rubber Keyed Sinclair ZX Spectrum – Pt.5 Case Cosmetics
Now the Spectrum’s board was fully refurbed and tested working, it was time to turn my attention to the case, keyboard and fascia. The original fascia looked a little tired and was dented so I had ordered a replacement from … Continue reading
Refurbishing a 48K Rubber Keyed Sinclair ZX Spectrum – Pt.4 Custom Composite Video Mod
Now I had the Spectrum PCB fully working, I wanted to add a Composite Video modification to round off all the refurbishments. I had already used a neat circuit advised by Andrew Gostling when I repaired a previous machine. Although … Continue reading