This is a ZX Specrum Clone base on Harlequin by Chris Smith (http://www.zxdesign.info/harlequin.shtml). PCB is the same size as original ZX Spectrum, can be fit in 48K or 48K+ case.
- PCB current version is 4A, support 48K, 128K, 128K +2A/+3/+3E ROM
- Support ALL RAM mode, you can run CP/M with this board when using with floppy disk interface
- Flash ROM 29F040/39SF040 (upto 8 banks of 64K, select by dip switch)
- Video signal is ZX Spectrum 48K/128K timing (select by switch)
- AY-3-8910 sound chip
- Kempston Joystick port
- RS232 on board (option)
- Composite output, support both PAL and NTSC (There is a footprint to install 3.579MHz oscilator for NTSC)
- Use standard ZX Spectrum Adapter, 9V with center pin negative (-)
You can buy Superfo Harlequin 128 issue 3H PCB from PCBWay through this link:
You can buy Superfo Harlequin 128 issue 4A PCB from PCBWay through this link:
You can buy Superfo Harlequin 128 issue 4B PCB from PCBWay through this link: