ZX NUCLEON 512 KB - Pentagon 128/512 KB, ~ZX Spectrum 128 KB clone
Version 4A (Photos are illustrative)
Original product made in EU, no-bad-fake copy from Russia(Brand new electronic, self home-made kit, SMD components are pre-soldered)ZX NUCLEON 512KB is a clone of Pentagon 128KB/512KB computer, respectively approximate ZX Spectrum 128KB. The motherboard has the same dimensions as the ZX Spectrum 48KB computer board and will fit into his case.Electrical wiring is largely based on Pentagon 128KB/512KB computer and keeps timing important parts of the computer! ZX NUCLEON 512KB uses modern SRAM memory instead of historical dynamic RAM. There are also some minor modifications, bug fixes, and a better video part including RGB video output. The computer also contains a program sound generator AY-3-8910A.Important improvements opposite all competing projects: All In/Out signals between the CPU and the bus are amplified by drivers!
This means greater capabilities and reliability with connected external peripherals and CPU protection against damage.
Why buy ZX NUCLEON 512KB and not another, competitive project?The vast majority of the best quality software from the 199x-20xx period comes from the countries of the ex-USSR. This software largely uses Pentagon timing and does not work on ZX Spectrum and its derivatives. That's why ZX NUCLEON is the best choice for the future.
Properties:- CPU tact frequency 3,500MHz (classic Pentagon mode), Pentagon video timing
- 512KB fast RAM, Pentagon 1993 ROM (NEW)
- RAM paging compatible with Pentagon 512KB or 128KB or Spectrum 128KB (bits 0,1,2,6,7 on port 32765d)
- Function blocking 512KB with switch (128KB forced mode)
- Build on quality LS/ALS integrated circuits
- Two video output formats: S-VHS (PAL) and analog RGB (NTSC not supported)
- Mixed audio stereo output: AY-3-8910 (switchable ABC or ACB mode) + BEEP + Tape in/out
- Tape in amplifier
- Original ZX Spectrum rubber keyboard supporting
- All I/O signals between the CPU and the bus are amplified by drivers
- Classic power source from ZX Spectrum (9VDC with central negative pole)Doc downloads: from the kit assembly at YouTube: YouTube video: with DivIDE 2k14 (Lotharek version), DivMMC Lite (Bytedelight version), Betadisk 128X, Betadisk 128mini, D80+K, ZX-VGA-JOY
This is a clone of the Pentagon 512KB computer, just an approximate clone of the ZX Spectrum!
Therefore, it may not be compatible with all devices designed specifically for ZX Spectrum.
Incompatibility with your device is not a reason for complaint.Pentagon-based computers has small artifacts in the image - color leakage between
characters, or character and border. This is a normal fact and is not a reason for a complaint.The kit is intended for more advanced electronics, it requires some knowledge of components, soldering, measuring, working of digital circuits, etc. I expect that only interested parties who are willing and able to solve any problems that arise during construction will start building, the seller cannot provide this support. Thank you.