New beta firmware v.25 beta2 released

New beta firmware v.25b2 released

This update may reset the configuration to the default setting. After
the update, the SD card and other settings have to be made again.

There are many minor and major improvements, such as
– Simple Frequency Counter added (2+ MHz, with adapter up to 32 MHz)
– Identification of unknown logic ICs has been improved
– Support for some exotic ICs: TMM2332, EMM4804, Intel D27513, Intel
D27011, LH532200, LN5322

The manuals have been updated and can be downloaded from my website. The
manual has been splitted into three parts now:
– EN-1 Assembly, Programming and Troubleshooting Manual
– EN-2 User Manual
– EN-3 Bill of materials (BOM)

The interactive IC comparison list has also been updated, as have the
PDFs with the supported ICs. There is also an online version available
on my website now.

New links are available to reach the firmware pages more easily (the old
links remain valid for the time being):

Firmware & Gerbers: https://8bit-museum.de/firmware
Dropbox main site: https://8bit-museum.de/dropbox

ZX Max 128

ZX Max 128 – ZX Spectrum clone – Printed Circuit Board – PCB

This is a ZX Spectrum 128 Clone base on CLPD EPM7128S. The ULA implement is base on ULA chip for ZX Spectrum project by Rodriguez Jodar, Miguel Angel

PCB is half size of original ZX Spectrum, can be fit in 48K or 48K+ case.

The MechBoard64

The MechBoard64 Commodore Mechanical Keyboard!

The MechBoard64 is a replacement keyboard for the Commodore 64. The keyboard is based on microswitches from Gateron, lasercut aluminum brackets that are anodized in black and a black PCB. 

The MechBoard64 consists of 123 individual pieces and 200+ soldering points connect it all. The MechBoard64 fits perfectly in breadbox and C64C slim cases.

The MechBoard64 Keyboard is based on free project “The MechBoard64” by MtnBuffalo.

vRetro ULA Replacements vLA81 & vLA82

vRetro ULA Replacements vLA81 & vLA82

The vLA81 & vLA82 are a modern plugin replacement for the ZX81 ULA or Spectrum 48K ULA.
As they simply don’t make ULAs anymore, then unfortunately if the ULA has failed, then options for repair are rapidly diminishing.
The vLA81 & vLA82 provides a simple way to keep these icons of 80’s computing going.