- List of ZX Spectrum clones
The only official clones of the Spectrum were made by Timex. There were three models developed, only two of which were released:
Timex Sinclair 2068
A significantly more sophisticated machine than the original Spectrum. The most significant changes were the addition of a cartridge port, an AY-3-8912 sound chip and an improved ULA giving access to better graphics modes. The TS2068 was marketed in the United States, while essentially identical machines were marketed in Portugal and Poland as the Timex Computer 2068 (TC2068) and Unipolbrit Komputer 2086 (UK2086) respectively.
Timex Computer 2048
A machine very similar to the Spectrum, but with the improved ULA from the TC2068 allowing access to the improved graphics modes. Marketed only in Portugal.
Timex Sinclair 2048
A never released variant of the TS2068 with 16 kB of RAM.
ATM (ATM Turbo) was developed in Moscow, in 1991, by two firms, MicroArt and ATM. It has Z80 at 7 MHz, 1024k RAM, 128k ROM, AY-8910 (two ones in upgraded models), 8-bit DAC, 8-bit 8-channel ADC, RS-232, Centronics, Beta Disk Interface, IDE interface, AT/XT keyboard, text mode (80x25, 16 colors, 8x8 pattern), and 3 graphics modes.
An open project to build a ZX Spectrum compatible computer. The CPU is Zilog Z380 (a 32-bit version of the Z80, capable of running at 40 MHz), it has its own graphic adapter, AT-keyboard, own BIOS and extended BASIC-ROM, and RAM expandable up to 4GB linear. The computer is supposed to be compatible to 98%. Standard devices of are HDD-controller, DMA vs IRQ controller, ROM-Task Switching and more. So far only the HDD-controller is produced but the rest exists as drawings. All the plans are freely available.
A Russian clone of the 48K ZX Spectrum. ULA replacement made with K556PT4 and K155PE3. CPU running at a higher frequency (4 MHz) which made it less compatible.
A ZX Spectrum clone made in St. Petersburg, Russia in 1993. The size of the system unit is 16.8 × 10 × 2½ inches. It even uses a Russian Z80 clone as CPU.
Bi Am ZX-Spectrum 48/64 and 128
A Russian clone of the ZX Spectrum. The name of the Bi Am ZX-Spectrum 48/64 suggests that it comes with 64 KB RAM. The size of the system unit is 10 × 8.4 × 2 inches. Made of metal. Has the sign Made in RF (Russian Federation) at the back. It was produced in 1992–1994.
The Bi Am ZX-Spectrum 128 was a 128 KB version of the same computer.
A Romanian ZX Spectrum clone made by Intreprinderea Electronica. It is called 'Calculator pentru Instruire Personală' which means 'computer for personal teaching'. The keyboard looks nice, but the key switches are real simple and so is the 'feeling'. A nicely built PCB with 45 chips (most 74-family) inside. The ROM is original Sinclair, although instead of the Sinclair copyright message, it states 'BASIC S'. Only one set of 8 * 1-bit 64K RAMs present. The power supply is the size and weight of a couple of bricks including a huge transformer unlike the now-standard switching power supply.
A Russian clone of the ZX Spectrum with 48 KB RAM.. Actually it's modified version of Leningrad 2, produced by co-op Composite.
The Czerweny CZ 2000, Czerweny CZ Spectrum and Czerweny CZ Spectrum Plus were Argentinian produced clones.
A Russian clone of ZX Spectrum+ manufactured in 1991 at a former military plant, near the city of Zelenograd. Fully compatible with the Spectrum+, the Delta came equipped with 48 kB of RAM, video output, cassette in/out, two joysticks ports (both Kempston and Sinclair), RGB adjustment controls, and its own expansion port for Russian hardware.
The Delta originally sold for about 620DM, and sold very well: for a few months it was on the bestseller list in the region.
It has been reported that the machine may have actually been re-baged unsold Spectrums from the UK. Such reports include reports that various stickers cover up hints of made in the UK and official Sinclair badging. more
Possibly related to Delta S-128.
A Russian clone of ZX Spectrum built in Voronezh, Kazan and other cities since 1990 that can run at up to 7 MHz. Comes with kempston and sinclair joystick ports and ports both for TV and RGB monitor. It has a printer interface and sound processor. As it is a modular design you can add disk controller. It could possibly be related to the Delta.
Delta SA and Delta SB
These were derivatives from the "Delta" series. Changes included more relaxed hardware planning, bigger case and partially non compatible ROM. The machine had built-in Russification feature, which was toggling charset to Russian when pressing the dedicated key (Sending BASIC code #209), and back to English charset (Sending BASIC code#210). These changes dissallow any floppy drive usage with these clones, and also, a lot of hacked titles, using famous "Hacked by Bill Gilbert" loader, will not launch. Later, corrected rom was released, which while still not able to work with floppy, was more compatible with game titles, but still not was fully compatible, games like "Pole Position" or "Starfox" will crash after loading. Additional changes were introduced in "Delta SB", it has extended ROM, and came with 4 game titles pre-built in. These titles were selected by additional hardware switches, located at top left side of computer. Pressing any of them will cause immediate reset and load of the corresponding title. Included titles generally vary, but most popular were: "Commando", "Astro Marine Corps", "Dan Dare 3", "Star Invaders 2".
It should be noted, that part of these clones were manufactured in Tbilisi, Republic of Georgia, at currently abandoned Military Scientific Plant "Skhivi". No references to real manufacturer was given, and all data refer like this was an original product from Zelenograd. The difference may be noted by the correction table of user manual. In original manual, it was hand written and rotoscoped, the Georgian release included computer typed correction list.
A Soviet clone of the ZX Spectrum home computer. It was based on an analogue of the Zilog Z80 microprocessor. Its name comes from Dubna, a town near Moscow where it was produced, and "48K" stands for 48 KBs of RAM.
Also known as the Elara-Disk 128 was a Russian clone of the 128K ZX Spectrum with 58-key keyboard, disk drive, kempston and sinclair joystick. It is possible to expand it but it's slightly incompatible due to some ports are changed.
Elwro 800 Junior
Polish clones of the ZX Spectrum. It had a full size keyboard and even a paper holder. The reason it has a paper holder is that the case was originally designed for a small electric organ. A disk drive was available and there also was a version of CP/M called CP\J for this machine. The updated 804 Junior PC had an internal 3.5" diskdrive.
Felix HC series
A series of ZX Spectrum clones was manufactured in Romania from 1985 to 1994 by ICE Felix. The designation HC means Home Computer, and for the first three models in the series, the number is the year of first manufacture. Models in the series were: HC 85, HC 88, HC 90, HC 91, HC91+ (HC128), HC 2000, HC386.
The earliest version, HC 85, closely resembled the Spectrum, with a built-in BASIC interpreter, Z80A processor, 48k RAM, tape, serial and TV interfaces. It was used in schools/universities and as a personal computer.
The HC 90/91 could access a disk drive and run CP/M programs by adding an extension board. The HC 91 had a modified keyboard with 50 keys instead of 40.
The HC 2000 (manufactured from 1992–1994) had a built-in 3.5" 720k disk, and 64k RAM, it could be used both as a Spectrum clone with added disk functionality (only 48k RAM available) or in CP/M mode, giving access to the full 64k memory.
A Russian clone of the ZX Spectrum made in 1993 in Moscow. It is very similar to the Pentagon but INT is re-made to be like the original. There exists four or five models of it but there are only minor differences between them, for instance one has wrong released turbo Beta Disk interface so when you read/write disks on your own GRM everything is normal, but when you want to save something to this disk on any another machine then all information on disk will be destroyed. They are not easy to expand because of some PLM (small ones) chips inside which does not allow you take some signals you may need to attach modem, etc.
The GRM2+ board was used to create the GrandBoard2+
A Russian clone of ZX Spectrum. The size is 350x280x35 mm (13.2 × 8.4 × 2 inches). Developed and manufactured from 1994 by Independent Science-Manufacturing Laboratory of Computer Techniques in city Frajzino. Based on board GRM2+
- CPU: Z-80 NEC (8-bit)
- Clock frequency: 3,45 MHz
- Capacity of the main memory: 128 KB
- Text: 24x32, 8 colors
- Graphics: 256x192, 8 colors
- Software: BASIC, TR-DOS 5.03, LPRINT 3
- Hardware: Turbo, storage on cassettes, FDD 2x720 Kb, mouse, sound processor AY-8910m(YM 2149F), printer
A Hungarian ZX Spectrum clone made by Híradástechnikai Szövetkezet, released in 1986. It was the third computer from the company. The two first computers HT 1080Z and HT 2080Z were clones of TRS-80 and were unsuccessful because of the poor graphics features and high price. They were both school computers. In 1986 in Hungary the school computers have to fulfill new requirements: they have to produce high resolution graphics and support the special Hungarian characters. That's why the HT 3080C came out and it was both compatible with the previous HT machines as well as the ZX Spectrum. You could switch between TRS-80 and ZX Spectrum mode. It had a graphics resolution of 256x192 (standard Speccy) and an AY-chip for sound (to be compatible with the previous HT machines, not with the 128K Speccy). ROM: 32K (Speccy+HT ROMs), RAM: 64K (possibly also a requirement for Hungarian school computers, because all school computers in Hungary had 64K). It had a Commodore serial port so you could also connect peripherals made for the C64 to it, for instance the 1541 disk drive.
A Soviet/Russian 8-bit home computer, based on the Sinclair Research ZX Spectrum hardware architecture. It also featured a CP/M mode and Forth mode or LOGO mode, with the Forth or LOGO operating environment residing in an on-board ROM chip.
Inves Spectrum 48k plus
A clone of the ZX Spectrum+ from Investronica in Spain. Released after Amstrad bought Sinclair Research Ltd. Looked much like a normal 48+. It has compatibility problems with some games (Bombjack, Commando, Top Gun, etc.). On the rear there was a Kempston joystick connector.
A Romanian clone. The casing was adapted from a telephone.
A Russian clone of the ZX Spectrum that came in 1998. It was made by NEMO company and has 1024KB of RAM and was a rival of Scorpion ZS 256 and has a slightly lower price. It has controller for PC keyboard and HDD but not for floppy although it was available as an extension card. It's very easy to connect General Sound. Has turbo mode at 10 MHz.
A Russian clone of the ZX Spectrum which used PZY K573PF2(5) to produce the TV signal. It was developed and manufactured from 1991 but was never made in as many copies as the Leningrad 1.
A series of Russian ZX Spectrum clones.
Kvorum has 48K memory. Probably a clone of the standard 48K Spectrum
Kvorum 64 had 64K memory.
Kvorum 128 was a clone with built in tests, memory monitor and copying in ROM. Possibility to run CP/M and TR-DOS (betadisk).
Kvorum 128+ was as the Kvorum 128 but comes with built-in 3.5" drive.
A series of two Russian clones of the ZX Spectrum.
In 1989 came Leningrad 1 a clone of the 48K which came to be the cheapest of the mass-made clones. They attempted to make the design as simple as possible and more compact. The only addition was a joystick port. It was designed by Sergey Zonov who later went on and created the Scorpion.
Leningrad 2 came in 1991. The joystick was changed to Kempston compatible and the keyboard was much improved. It sold in great numbers.
A clone of the ZX Spectrum made in Russia in 1990. It runs at 2,5 MHz and has 48K RAM. It has ports for Sinclair and Kempston joysticks. The name suggests it's related to Master K11
A Russian clone of the ZX Spectrum made in Ivanovo in 1991. 48K RAM, 16K ROM and built in(?) kempston joystick interface. The size of the system unit is 14 × 8 × 2½ inches, the weight is 1.5 kg approx.
It's possibly related to the Master.
Microdigital TK 90X
The TK 90X was the first Brazilian ZX Spectrum clone made in 1985 by Microdigital Eletronica, a company located at São Paulo, Brazil, that manufactured some ZX81 clones before (TK 82, TK 82C, TK 83 and TK 85) and a ZX80 clone (TK 80). The ROM were hacked to allow an UDG editor and accented characters (incompatibility issues are very rare or none). The keyboard membrane is more resistant than the original from ZX-Spectrum 48k (very similar to the actual ps2/USB keyboard we use now), and there is also an 'yuiop' joystick connector between expansion and mic/ear connectors.
Microdigital TK 95
The TK 95 microcomputer was the evolution of TK 90X made in the 1980s by Microdigital Eletronica, a company located at São Paulo, Brazil that manufactured some ZX81 clones before (TK 82, TK 82C, TK 83 and TK 85) and a ZX80 clone (TK 80). The first version was launched in November 1986. This 'evolution' were mostly 'cosmetic', only at their keyboard and whole ABS plastic case, a bit like between legit ZX-Spectrum 48k and 48+ models, since the board seems exactly the same, and the 16k ROM seems to be very similar.
A Czech clone of the 48K ZX Spectrum. The ROM include Roman chars and Roman chars with Czech diacritic marks. As the Mistum was a is a hardware design they may look very different as each builder made his own case and keyboard. An article on how to build a Mistrum was published in the Czechoslovak amateur radio magazine Amatérské Radio nr 1/89.
Moskva was the name of two ZX Spectrum clones.
Moskva 48K (Москва/Moscow) was the first mass-produced clone of the 48K Spectrum in Russia. It was first made in 1988.
Moskva 128K was a faithful clone of ZX Spectrum 128K with built-in printer interface, joystick, TV/RGB port but without sound processor and disk drive. It was first made in 1989.
A Russian ZX Spectrum clone from 1990 designed for transport in a case. It was made for diplomatic offices and children. It's compatible with Dubna 48K and has a joystick port. At the time of launch time the price was 650 roubles.
Peters MC64S1 has Service monitor (additional ROM), fast loading in the RAM frequently used software. Assembler & monitor, test of a video and copyist for tape are included in first version Service monitor.
Peters MC64S2 has Service monitor 2, which included of Tetris, test of a video, copyist for tape and text editor. And it has printer slot (Centronics).
A Russian clone of the ZX Spectrum, I guess it has 256K memory. The name suggest that it was made by Peters Plus, Ltd. that also made the Sprinter.
Peters MD-256S3 has Service monitor 3, including an alternate (for TR-DOS) disk operational system IS-DOS.
A ZX Spectrum clone produced between 1989 and 1994 by Selto-Rotor (Scientifically technical industrial creative association) a former military factory.
A Soviet ZX Spectrum clone developed in 1991 in Moscow by Kondor and Kramis.
It has Z80 at 7 MHz, up to 1024 KiB RAM, 64 KiB ROM, Centronics, AY8910 cound chip, Beta 128 disc interface, IDE interface, and 512x240 multicolor (i.e. 2 colors per 8x1 block) graphics mode for CP/M.
Users liked to plug in two 8-bit DACs to play 4-channel modules of Scream Tracker.
It was possible to run CP/M and a graphics mode with 512x240 pixels was added to be able to run 80 characters per row. It has both parallel and serial ports, sound processor and the possibility to use an IBM keyboard. In later issues it also had a hard disk interface and turbo mode.
A clone of ZX Spectrum Plus produced in 1990 in Lithuania. It has Russian symbols instead of capitalized English and is reported to be a good and reliable machine because it was produced by ex-military plants as a part of conversion program.
Scorpion (Russian: Скорпион), was a very widespread ZX Spectrum clone produced in St. Petersburg, Russia by Sergey Zonov. It had a Z80 processor and from 256 to 1024 KB memory. Various extensions were produced, including SMUC — adapter of IDE and ISA slots, which allowed the use of IBM PC compatible hard drives and extension cards.
Sever (Nord) 48/002
A Russian clone of the ZX Spectrum. It was made in 1990 and comes with 64 KB RAM and 16 KB ROM. The size of the system unit is 12x8x2½ inches, the weight is 1.5 kg.
A Russian clone of the ZX Spectrum.
While it was software compatible with ZX Spectrum 48K and has two Interface 2 joystick ports, it's hardware was quite different, utilizing different memory chip set-up, lacking slowdown when accessing certain areas of memory, as in original ZX Spectrum, so, certain applications and games may not behave correctly or crash.
An East-German clone of the ZX Spectrum. It came with built in joystick interface and either 48 or 128K RAM. It was sold in kit form by Hübner Elektronik.
A Russian clone of the 48K ZX Spectrum. It used a membrane keyboard and has both Latin and Cyrillic letters. It was made in 1991 by Oryol PC manufacturer, a former military factory. The ROM includes a monitor program.
TimS was developed around the university of Timişoara in Romania and the name TimS comes from TIMişoara and Spectrum. The models were extended in various ways and production continued into the early 1990s. The computer is fully compatible with ZX Spectrum, but comes with 64 KB RAM. At the back it has Source (ALIM), parallel and serial connectors, cassette player, monitor and TV connector, reset button. Later models have a joystick connection, 192KB RAM and AY-3-8912 sound chip.
Also known as ZX-Forum 2 or XX Frium2. A relatively unsuccessful Russian clone of the ZX Spectrum. It was designed with two Z80 processors, one serving as the video processor, and had an RS-232 port, turbo mode, IBM keyboard, 10 Mbit/s local network and a CGA graphics mode with 640x200 pixel resolution. The memory is expandable to 512 KB.
Several emulators are also available to enable Spectrum software to be run on other hardware.
- Planet Sinclair: Computers: Clones and Variants
- Sinclair Nostalgia Products — Sinclair Clones
- Old-computers.com - ICE Felix HC-85
- Old-computers.com - ICE Felix HC-91
- Old-computers.com - ICE Felix HC-2000
- ICE Felix website
- ATM Turbo support site (contains Profi schematics)
- Virtual TR-DOS (contains some Profi software)
- Russian most popular Spectrum models
- History of creation (Russian)
Sinclair ResearchZX80 · ZX81 · ZX Spectrum, Spectrum+, Spectrum 128 · QL Timex Sinclair AmstradZX Spectrum +2 · ZX Spectrum +3 Cambridge Computer Compatible systems Sinclair Research Peripherals Timex PeripheralsTS2050 · FDD · FDD3000
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