Retro Chip Tester Pro Shop
VIC-II Kawari is a hardware replacement project for the VIC-II (Video Interface Chip II) found in Commodore 64 home computers. In addition to being compatible with the original VIC-II 6567/6569 chips, some extra features are also available. This project is meant to replace video chips found in breadbins.
RCT Pro – New firmware v.27 released
There are many improvements:
1. The ROM identification feature has been improved. Instead of
displaying the first database entry only, it shows all entries for a
calculated CRC32 now.
2. The max. number of entries for the Index Compiler has been increased
to 1,000,000
3. ROM dumping of VCS Cartridges supports F6SC and F8SC bank switching
4. some minor optimizations
A bug that nobody complained about has been fixed:
– The orphaned text “Search” in the help line for the “SERVICE” menu has
been removed
A few exotic memory ICs have been added:
– DM85S68 (16 x 4, SRAM)
– HN62312 (256k x 8, ROM)
– TMM2332, Ro9333, Ro9433, CDM5333, 2333 (4k x 8, PROM)
– Atari 23128 Cartridge ROMs (16k x 8, ROM)
The Atari “23128” is not a real 23128, it is a modified ROM with 24 pins
that is used in cartridges and has a build in bank switching. So you can
dump these ROMs without using the VCS Cartridge Adapter.
New and improved Logic-IC tests:
– 75361 (DIP-8 and DIP-14), DM9000, DM9001, 74381, 74382 added
– 74259, 74381/74382 renamed to 74F381/74F382 (improved/corrected)
The 75361 seems to exist as DIP-8 and DIP-14, you can select DIP-8 and
DIP-14 from the menu.
All files (crc32 lists and firmware) are available from:
http://8bit-museum.de/firmware
vLA128 – Sinclair 128K / +2 (Grey) ULA replacement
The vLA128 is a modern plugin replacement for the Spectrum 128K(aka ‘Toastrack’) or Spectrum +2 (Grey case) ULA (type 7K010E-5 or Amstrad 40056).
vLA128 Features include:
– Fits within the same 48 pin socket outline as the original ULA.
– Narrow IC pins for easy plugin ULA replacement. In most cases the existing socket will be OK.
– Provides the same functionality as the Sinclair 7K010E-5/ Amstrad 40056.
– Passes standard ULA benchmark tests (floatspy, Brendan’s Diagnostic ROM etc.).
– Tested with an extensive suite of Spectrum 128/+2 (Grey) software.
– Ideal for preserving the original Toastrack/+2 ULA.
– Low power consumption.
Price lists contain the products that we want to offer at specific prices on VCF Midwest 2024 show:
We accept cash, PayPal, and all major credit cards!
Meet us at Vintage Computer Festival Midwest 2024 At The Schaumburg Convention Center
The booth will be located in Zone G Table 17
You can find more info here :https://vcfmw.org/
VCF Midwest 19 Exhibitor and Vendor List https://vcfmw.org/ex.html
New beta firmware v.27beta4 released
After the major update regarding the ROM identification/testing feature
in v.26beta2 that seems to be stable, some logic IC definitions have
been improved and added.
Following the major update of the ROM identification/testing feature in
v.26beta2, which seems to be stable, some logic IC definitions have been
improved and added, e.g. DM9000, DM9001, 74259, 74381/74382 renamed to
74F381/74F382, 74381, 74382.
Also a strange IC has been added. The 75361 seems to exist as DIP-8 and
DIP-14, so you can select a DIP-8 and a DIP-14 from the menu now.
This will probably be the last beta version before the release of v.27.
We updated several sub routines to speed up
writing on SD card. Since this changes some code I add another testing
cycle for this firmware release.
Firmware & Gerbers: https://8bit-museum.de/firmware
Dropbox main site: https://8bit-museum.de/dropbox
J-CPU64 Commodore 64 (C64) MOS 6510 or 8500 Replacement & J-CIA 64 Commodore 64 and 128 (C64 / C128) MOS 6526 CIA Replacement !
J-CPU64 has been developed by Jani – FPGA based replacement for MOS 6510 CPU
J-CIA 64 has been developed by Jani – FPGA based replacement for MOS 6526 & 8521 CIA chips
RCT Pro – New firmware v.26 released
We are proud to present a new firmware release (v.26) after two beta versions.
„Joystick test“ (logic menu). Requires a simple adapter with DSUB-9 socket.
New Adapters
Joystick Adapter (a small adapter that allows to check the functionality of a standard joystick).
Intel 1101 (SRAM, 256 x 1)
The Gerber data for the current version of the adapter has already been published. The schematics of all adapters are available in the BOM.pdf now.
New Memory ICs supported
Intel 1101 and compatible (adapter required with custom definition, 256 x 1, SRAM)
DM85S86 (256 x 1, SRAM)
New Logic ICs supported
The full change log can be found here:
Xberry Pi : ZX Spectrum Next Clone
This is a ZX Spectrum Next Clone in the form of Raspberry Pi. It is 100% compatible with ZX Specrum Next (https://www.specnext.com/).
PCB is the same size as Raspberry Pi Board, can be fit in Raspberry Pi 3+ case with small modification
Transparent High Quality Dust Covers for your precious retro computers.
Made from high quality material, around 1 mm of thickness, not totally rigid, with small flexibility for protecting against damage (break etc.).
Protect against UV radiation.
Every dust cover comes with a box.