Timex Sinclair 1000
The American licensed version of the ZX81 (Timex-Sinclair): a Zilog Z80A, 2 KB RAM, monochrome block graphics and no sound. Timex-Sinclair’s first home computer, priced at $99.95.
European, Ukrainian and American machines built “after” the Spectrum — from the Czechoslovak Didaktik to Ukrainian models and the Timex from the USA.
The museum verifies the list and attribution of clones against its inventory before publishing. Years and origins may be refined.
The American licensed version of the ZX81 (Timex-Sinclair): a Zilog Z80A, 2 KB RAM, monochrome block graphics and no sound. Timex-Sinclair’s first home computer, priced at $99.95.
A licensed Spectrum variant built by Timex Portugal for Europe: a Zilog Z80A at 3.5 MHz, 48 KB RAM, extended video modes and additional ports.
A Romanian home Spectrum clone: a Z80A at 3.5 MHz (or the local MMN80CPU) and 64 KB RAM. Made by ICE Felix, Bucharest; used in education and by hobbyists.
A Polish Spectrum-compatible computer for schools: a Z80 (U880) at 3.5 MHz, 64 KB RAM and classroom-network support. Made by Mera-Elwro, Wrocław.
A Spanish ZX Spectrum+ clone with a redesigned board: a Z80 processor, 64 KB RAM (48 KB for the user) and a built-in Kempston joystick interface. Made by Investrónica.
A Czechoslovak ZX Spectrum clone: a Zilog Z80 processor and 80 KB of RAM in two 32 KB banks. Made in Skalica.
A Romanian Z80 clone with 48 KB RAM (expandable to 80 KB); its name comes from “COmputer BRAșov”. It could run as a ZX Spectrum or under CP/M. Designed in 1986 at ITCI in Brașov; students widely built their own copies.
A Ukrainian Spectrum clone: a Z80A, 48 KB RAM and a keyboard that switches between Latin and Cyrillic. Made by NPO “Rotor” in Cherkasy in 1989–1998 (over 73,000 units).
A Ukrainian ZX Spectrum clone built on TTL logic: a Z80A (or UA880A) at 3.5 MHz, 64 KB RAM with “shadow” ROM and an extended 67-key keyboard with several layouts. Released in 1989 at the Dnipro machine-building plant; produced into the mid-1990s.
A later Czechoslovak Spectrum clone: a Zilog Z80 and 48 KB RAM. Made in Skalica and common in schools.
A Ukrainian ZX Spectrum 48K clone: built from discrete logic (~48 ICs), a 50-key membrane keyboard and a metal case. Released in 1991 in Kharkiv at the Khartron plant (NPO Elektroprylad); it displayed “**** IKAR-64 ****” on power-up.
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