In Stock
ZX True Tone (ZXTT) [First released September 2021]
A freshly soldered up batch of ZXTT modules for use with Ed Brindley's YM/AY #RC2014 soundcard to generate the exact 1.7734MHz frequency as used by the AY-3-8910 in the 128K #ZXSpectrum so tones/envelopes are pitch perfect for whatever funky ZX Spectrum music you choose to play!
My main site for my peripherals for RC2014 and compatibles:
https://2014.samcoupe.com/
Also on Tindie at:
https://www.tindie.com/stores/quazar/
Some #retro goodness arrived at my desk today ...
Now that I am pretty much all moved in to #RC2014Towers I have spent some time this evening doing some of the more aesthetic stuff. Most of the assembled #RC2014 computers are now on display and the #Z80 artwork I picked up last weekend has been hung.
(A detailed description of most of those machines can be found here https://rc2014.co.uk/limited-edition-and-custom-rc2014/)
EDIT: Buch ist vergeben. Danke an alle fürs Teilen.
---
Hat hier jemand Verwendung für dieses Buch?
"Programmierung des Z80" von Rodnay Zaks. Es handelt sich um die 6. Auflage von 1984, erschienen im Sybex-Verlag.
Würde es gegen Porto verschicken.
Single-Board Z80 Computer draws Inspiration from Picasso.
Picasso and the Z80 CPU are not two things we often think about at the same time. One is a renowned artist born in the 19th century, the other, a popular CPU that helped launch the microcomputer movement. And yet, the latter has come to inspire a computer based on the former.
https://concretedog.blogspot.com/2025/04/building-beautiful-things-rc2014-mini.html
![[ImageSource: concretedog]
The RC2014 Mini II, it’s a single-board Z80 retrocomputer that you can use to do fun things like run BASIC, Forth or CP/M.
However, where it gets kind of fun is in the layout. It’s the same fundamental circuitry as the RC2014, but it’s been given a rather artistic flair. The ICs are twisted this way and that, as are the passive components [even some of the resistors are dancing all over the top of one another].
The kit is a limited edition, too, with each coming with a unique combination of colors where the silkscreen and sockets and LED are concerned. Kits are available via Z80Kits for those interested.
<https://z80kits.com/shop/rc2014-mini-ii-picasso/>](https://nerdculture.de/system/media_attachments/files/114/636/436/693/132/521/original/fc507f82cfabbce6.jpeg "[ImageSource: concretedog]
The RC2014 Mini II, it’s a single-board Z80 retrocomputer that you can use to do fun things like run BASIC, Forth or CP/M.
However, where it gets kind of fun is in the layout. It’s the same fundamental circuitry as the RC2014, but it’s been given a rather artistic flair. The ICs are twisted this way and that, as are the passive components [even some of the resistors are dancing all over the top of one another].
The kit is a limited edition, too, with each coming with a unique combination of colors where the silkscreen and sockets and LED are concerned. Kits are available via Z80Kits for those interested.
<https://z80kits.com/shop/rc2014-mini-ii-picasso/>")
I Have neglected these projects too long 
. I will tidy up and get back them ASAP.
Some of the "need to babysit but don't need unbroken attention" like ripping and cataloguing media for the media server. I just doubled our storage capacity and apparently I'm dying to fill it. 
That and I really hate chasing favorite media across services
I also just picked up a #Z80 based #RC2014 Retro Homebrew computer kit. It is a modular computer that you can use to run the original Microsoft Basic as well as CP/M and other stuff. It has a modular backplane that you can use to install add-on cards that either the original designer built or that the community has contributed to enhance and extend functionality (RTC board, IDE controller, all kinds of stuff!). And you can buy it as a completely unassembled kit, which I did. So I'll be breaking out the soldering iron!
2/
New blog post! Remember when trusted adults promised you that you could be anything? Well, the Raspberry Pi Pico actually _can_ be a ROM cartridge for my beloved NEC PC-6001 home computer. Try not to get jealous of its success.
https://www.leadedsolder.com/2025/06/03/pc6001-pico-cart-version-1.html
The Grundy #NewBrain was an interesting #z80 based machine from 1982. One of its more remarkable features was a built-in single line display in addition to the video out, allowing for some portable use. The machine was targeted at business use and didn't get a large amount of platform specific software. It ran a version of #CP/M 2.2 with an efficient implementation giving it a large TPA. The platform also supports inverse characters, although without a specific control code to toggle so I need to manually track reverse character mode and toggle the top bit accordingly. With some gymnastics in memory management, a 50Hz timer is available, allowing me to count the ticks for the 10Hz timer expected by a full featured #Zmachine
Now that it's properly tested and running, you can download the latest addition to the #Vezza family from https://gitlab.com/sijnstra1/vezza and if you are curious about the NewBrain you can get the emulator and other info from https://newbrainemu.eu/new/
I've attached screenshots of the Bomber game in action, as well as the #Infocom classic A Mind Forever Voyaging.
I've created an Itch.io page for the Gauntlet Editor.
The Minstrel 4th stock is due in tomorrow, so the listing is now live on z80kits for anybody that wants a lovely Forth powered Z80 computer kit.
https://z80kits.com/shop/tynemouth-minstrel-4th/
I just corrected a bug on the Spectrum version of Silk Dust that prevented the player to finish part 2 of the game. I suspect the same bug affects other Z80 platforms. Stay tuned! https://darwinne.itch.io/silk-dust #indiegame #TextAdventure #correction #Z80 #z88dk #ZXSpectrum #retrocomputing #SilkDust #InteractiveFiction
This morning, I'd like to treat your eyes to a particularly rare specimen of the computer history. A #Yodobashi #Formula1, distributed in Germany by the company Schoppe&Faeser located in Minden. It was used as a "mobile" programming station for the company's early control systems. And btw, it's fully functional right now.
#RetroComputing #ComputerMuseum #Z80 #Zilog #Eprommer
RADUGA: The Retro Computer from Behind the Curtain - When [Kasyan] was six years old, he saw a RADUGA computer, a Russian unit from the... - https://hackaday.com/2025/05/14/raduga-the-retro-computer-from-behind-the-curtain/ #retrocomputing #ussr #z80
OHHHHHhhhhh MAN!!! I put it away when I bought my A500. I’d been wanting to try it for a while but I feared it didn't work. Today is the day. It works exactly like it worked when I stored it almost 40 years ago.
The only thing which don't work in this awesome MSX Canon V-20 is the T key but I'm still super happy with it. I'll try to fix it at a later date.
Gloomy day so rather than gardening I'm inside playing with electronics. I got a Z80 a while ago but I never used it. I'm going to stick it on a breadboard. I don't have any RAM or ROM chips but I do have some ATmega328 chips (the arduino ones) so I can program one of those to act like a memory. Maybe load new programs through the serial port, eh?
Does anyone know where I can buy a #Z80 chip in the UK? I'm looking for a Z84C0010PEG but can't find it anywhere 
This is what happens when your microprocessor has too many registers.
Couldn't happen on a 6502!
(Well done!)
