
Karabas nano revJ
Vakon84/karabas-nano
ZX Spectrum compatible machine with real Z80 CPU and all logic inside the CPLD Altera EPM3256ATC144 (or EPM7512).
Open-source boards designed in KiCad by Vakon84 on GitHub, from 9 repositories. A board’s address here is its repository’s there.

Vakon84/karabas-nano
ZX Spectrum compatible machine with real Z80 CPU and all logic inside the CPLD Altera EPM3256ATC144 (or EPM7512).

Vakon84/PC104-ISA-Card
Adapter for connecting a PC104 computer to a 16-bit ISA backplane. Power can be supplied from the backplane or from the PC104 module itself. DMA and IRQs are supported.

Vakon84/ATnoX
The ATnoX was born out of the necessity for me to have a small adapter adapter I could use to fit AT/XT motherboards into modern cases, powering them with ATX power supplies and turning them on with a momentary switch…


Vakon84/isa-ram-expansion
This is my simple 8-bit ISA RAM expansion board. I created it to allow me to add UMB memory to a regular XT. It can also bring a 512k or 256k XT up to a full 640k.

Vakon84/isa8_eth
If EEPROM has not been programmed prior to assembly, now it is a good time to do so. The U3 EEPROM contains the following configuration for the RTL8019AS chip: MAC address ISA resources for jumperless configuration Base…

Vakon84/lts74x
Lts74x was inspired by the following propjects: Integrated circuit tester: https://github.com/Johnlon/integrated-circuit-tester Smart IC Tester: https://github.com/akshaybaweja/Smart-IC-Tester

Vakon84/SNES-FeRAM-Cart
This project was possible thanks to poorstudenthobbyist (Very nice and informative guides) and whicker (Showed the basics of how to wire a FeRAM to SNES), as well as other members of NESdev forums.

Vakon84/zx81-mechboard
This keyboard is designed to use Cherry MX or Gateron switches. The keyboard is open source, please feel free to modiy it but always link back to this repository.

Vakon84/karabas-nano
ZX Spectrum compatible machine with real Z80 CPU and all logic inside the CPLD Altera EPM3256ATC144 (or EPM7512).