hkzlab

ES1868_ISA8. ISA 8bit sound card based on the ES1868F sound chip, providing Sound Blaster PRO and OPL3 compatibility in a highly integrated package

CGA_Redux. The Color Graphics Adapter Redux board is a more or less faithful clone of the original IBM CGA, based on the original schematics

ES688_ISA8. Sound Card for the ISA (8bit) bus sporting Sound Blaster / Sound Blaster PRO emulation via ES688F chip, and a real Yamaha OPL3 FM Synth. It's also completely jumper configurable.

ISA_EMS_4Mb. ISA 4Mb EMS expansion board

ISA_8bitNetwork_8019. 8bit ISA NE2000-compatible network card based on the RTL8019AS chip

MiniPerformerPlus. A 68030 accelerator for Machintosh Plus computers

CGA_Schematics. IBM Colour Graphics Adapter schematics redrawn in KiCad

C64_250407_SRAM_Adapter. SRAM Adapter for the C64 250407 board

ISA_EGA_CHIPS. This board is and EGA clone based on a reversed PA-WTEGA card, based on the chipset by CHIPS (P82C435 + P82A436).

ISA_EMS_2Mb. ISA 8bit EMS 2Mb expansion card

ATnoX. ATX to AT/XT/Amiga power supply adapter

catflap4linux. A port of catflap (tool to manage caetla carts on PSX) to Linux

DWAVE_MIDI_Wavetable. DWAVE is a small General MIDI module for the wavetable connector of your old sound card, based on the SAM2695 chip

TTL-to-RGB. This board converts CGA/EGA/MDA/Hercules TTL signals into analog RGB signals that can be fed into a compatible monitor

ISA_DualUARTParport. 8 bit ISA Parallel port + dual UART adapter

386DX_QFP_PGA_Adapter. A QFP -> PGA adapter for 386DX CPUs

sdcc-cpm-example. Hello world program running under CP/M-80, crosscompiled with SDCC (based on sources from N8VEM)

A500_r5-eprom_adapter. Amiga 500 rev.5 EPROM adapter for 27C020, 27C040 and 27C080

TurboXT_Addon. 8Mhz Turbo / Reset addon board for the IBM 5160 (The original XT)

ROsiM. ROsiM is a ROM simulator/emulator, supporting up to 512k/16bit ROMs

MIDI-Stick. MIDI-Stick is a small MIDI synth based on the SAM2965 that plugs in the joystick port of your sound card

ATXm5v. Inline ATX -5v injector

PS1_PU22_8MB_mod. A daughterboard to install 8MB of addressable RAM to a PU-22 based PS1

ISA_QuadUART2. This 8-bit ISA board will provide 4 serial RS232 ports using a single 16C554 controller. 2 ports are exposed on an external bracket and 2 are on internal headers.

C128_310381r7_sram_adapter. Static RAM replacement for the DRAMs on a C128 with a 310381R7 motherboard

pontag. PONTAG is an active adapter that converts a mouse using PS/2 protocol into an RS232 mouse (Microsoft protocol), commonly used on IBM XT/AT and compatibles.

EGA-2-RGBS. EPROM based EGA/CGA to analog RGBS converter

MacPlus_CAS_PLD_Experiments. Experiments with the CAS PAL for Macintosh Plus

schwim_repacked. SMD repackaging of the Shim-IWM replacement for old Macintosh computers

Z53C80_PLCC_to_DIP40_adapter. PLCC44 to DIP40 adapter for Z53C80 SCSI controller

SCART_SyncSplitter. SCART Sync cleaner/splitter

ISA_QuadUART. ISA 8-bit Quad serial adapter

AVR-Experiments. Some AVR MCU experiments

famiclone_dendy_cpu_clock_multiplier. Adapter to use a Famiclone Dendy CPU in a NTSC system!

Lava_RSC_Upgrade_Board. A board to perform upgrades to the Lava RSC Lite famiclone

tranzmon. TranzMON is a resident monitor for the Tranz 330 POS terminals, that turns them into a multipurpose Z80-based computer.

minos-z80-monitor. Attempt to create a C based Ithaca Audio S-100 Z80 CPU card monitor

Another_AT2XT. Another AT2XT Keyboard adapter PCB

OtterX_Ram_Expansion. RAM Expansion for the OtterX (CommanderX16 compatible) computer

JCart_Megadrive_RE. Reverse Engineering effort for the Megadrive JCart 4 player accessory

supercar_larson_scanner. A simple SMD Larson Scanner board made out of 74' logic

Padapter. Genesis/MegaDrive gamepad to C64/Amiga adapter, with 3 button support and switchable button map

YaGOL. Yet another Game Of Life, ultra-quick exercise for university course

n8vem-s100-65C02-ide. Example 65C02 asm code (xa65) to initialize and use the N8VEM S-100 IDE card

TK2000_Build_Notes. Build notes for a TK2000 clone

minos-z80-bootloader. IDE bootloader for MINOS Z80 monitor

A500_IDE_led. This board makes the A500 "DRIVE" LED blink for other activity too, for example, when an IDE drive is in use

ide44_angled. Simple adapter to angle a 2x22pin 2.0mm pitch connector by 90 degrees.

A2E_IOU_SpeakerReplacement. Apple IIe IOU Speaker decoding replacement circuitry

TK2KB. Test keyboard for the TK2000 computer

ROsiM_Loader. Companion software for the ROsiM ROM emulator/simulator

anastizer. Helping tool to make anastatic-like book digitalizations