New beta firmware v.28 beta2 available

New beta firmware v.28 beta2 released

v.28-beta2 is a maintenance release with some improvements.

1. EPROM programming: file extensions can be in upper case
2. Changed “Logic Menu #1”: Instead sorting DS/DM logic ICs in blocks of
DS8xxx, DS9xxx, DM8xxx, DM8xxx, the sorting is now 8xxx, 9xxx without
any prefix


3. Comparison list: selected ICs from Motorola MC800-, MC900, MC2000,
MC3000-series added (equal to SN15800-, SN15900-series)

A few exotic memory ICs have been added (custom definitions):
– SY2158A, SY2158B (1k x 8 – SRAM)
– DM87S201, DM87S202, DM87S221, DM87S222 (256 x 8 – ROM)
– DM8595, DM8596 (512 x 8 – ROM)
– 74F410 (16 x 4 – SRAM)

New Logic-IC tests:
– 742540, 742541, 74720, 74721, Am29520, Am29521
– 74210, 74310, 74340, 74341, 74344, 74535, 74536
– 40032, MC4015, 8092, 9007, 9016, 9017, 9312
– 9321, 9324, 74192, 74193, 8200
– 8555, 8556, 8560, 8563, 8835, 9007, 9317, 9318, MC14495
– MC830F, MC832, MC835, MC836, MC837,
– MC838, MC840, MC841, MC846F, MC849F,
– MC857, MC858, MC861F, MC862F, MC863F,
– MC930F, MC932, MC935, MC936, MC937,
– MC938, MC940, MC941, MC946F, MC949F,
– MC957, MC958, MC961F, MC962F, MC963F,
– MC1806, MC1807, MC1808, MC1809, MC1810,
– MC1811, MC1812, MC1818, MC1906, MC1907,
– MC1908, MC1909, MC1910, MC1911, MC1912, MC1918,
– MC2001, MC2003, MC2005, MC2007, MC2051,
– MC2053, MC2057, MC2101, MC2103, MC2105,
– MC2107, MC2151, MC2153, MC2157,
– MC3000, MC3001, MC3002, MC3003, MC3004,
– MC3005, MC3006, MC3007, MC3008, MC3009,
– MC3010, MC3011, MC3012, MC3016, MC3018,
– MC3019, MC3020, MC3023, MC3024, MC3030,
– MC3031, MC3032, MC3033, MC3034, MC3054,
– MC3055, MC3060, MC3063, MC3301

For the Motorola (MC) ICs please use the comparison list to find the
correct settings.

Improved / corrected tests:
– 74192, 74193, 8560, 8563, 93S47, 4931

All files are available from:

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

Vintage Computer Festival East 2025

Vintage Computer Festival East – DATES: April 4-6, 2025 – at the InfoAge Science & History Center in Wall, New Jersey.

It is a three-day event with Friday tech classes, Saturday and Sunday: dozens of exhibits, a consignment room, a single-board computer workshop, museum tours, learn-to-solder classes, and much more!

DATES: April 4-6, 2025

WHERE: InfoAge Science and History Museums, 2201 Marconi Road, Wall, NJ 07719

We will attend too and you can find us in building Exhibitor – Room A

More info you can find here – https://vcfed.org/exhibitor-and-vendor-layout/

You can find more information about this event and buy tickets on

Vintage Computer Federation webpage.

RCT Pro – New firmware v.27 released

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

New ULA  – in our store – vLA128 – Sinclair 128K / +2 (Grey)

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.

Vintage Computer Festival Midwest – 2024 Price List

Price lists contain the products that we want to offer at specific prices on VCF Midwest 2024 show:

  • Retro Chip Tester Professional Premium – Assembled Version – $519.99
    Retro Chip Tester Professional – Assembled Version – $419.99
    Retro Chip Tester Professional – Kit Version – $339.99
    Retro Chip Tester Professional – Motherboard – $139.99
    Retro Chip Tester Professional – Premium Clear Case – $54.99
    Retro Chip Tester Professional – Adapters Set 1 – $149.99
    Retro Chip Tester Professional – Adapters Set 2/5/6 – $44.99
    Retro Chip Tester Professional – Adapters Set 3/4 – $34.99
    ArcadeR 9-pin Retro Joystick – $39.99
    Sinclair ZX Spectrum 16K/48K The MechBoardZX LED Kit – $54.99
    Sinclair ZX Spectrum 16K/48K Replacement Case Set – $79.99
    Sinclair ZX Spectrum 16K/48K Rubber Mat – $19.99
    Sinclair ZX Spectrum 16K/48K Faceplate Cover – $19.99
    Sinclair ZX Spectrum 16K/48K Membrane Replacement – $9.99
    Sinclair ZX81/ Times 1000 Membrane Replacement – $9.99
    ZX81 or ZX Spectrum ULA Replacement (vLA81 / vLA82) – $9.99
    Xberry Pi: ZX Spectrum Next Clone – $149.99
    Kung Fu Flash Cartridge Commodore C64 / C128 – $39.99
    The MechBoard64 Assembled – $184.99
    The MechBoard64 Kit – $159.99
    The MechBoard64 LED Kit – $174.99
    Commodore PSU (64/128/Amiga 500) – $49.99
    Commodore PLA Replacement – $9.99
    Commodore J-CIA 64 or J-CPU 64 – $44.99
    Commodore C64/C128 Voltmeter – $19.99
    Commodore SidKick Pico PWM Kit / Assembled – $19.99 / $24.99
    Commodore SidKick Pico DAC Kit / Assembled – $24.99 / 29.99
    Dust cover for Commodore, Atari, Texas Instruments – $39.99
    Dust cover for ZX Spectrum 16K/48K, Timex 1500 – $19.99

We accept cash, PayPal, and all major credit cards!

New beta firmware v.27beta4 released

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

RCT Pro – New firmware v.26 released

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:

https://8bit-museum.de/rct-firmware-v-26-english