The following is a list of clones of Sinclair Research's ZX80 and ZX81 home computers: ZX80 MicroAce (1980, USA) Microdigital TK80 (1981, Brazil) Nova Electrônica/Prológica NE-Z80 (1981, Brazil) ZX81 Official clones Timex Sinclair T/S 1000 is a ZX81 with the same circuit board from the same factory, but with a 2K x 8 RAM chip instead of 1K. This is typically a U.S. model, with a VHF (NTSC) RF modulator and slightly improved RF shielding, but are the same BASIC machine. Timex Sinclair T/S 1500 is a ZX81 in a ZX Spectrum like case. Lambda Electronics Lambda 8300 (a 1983 clone, also branded as PC 8300, DEF 3000, Basic 2000, Marathon 32K, Tonel PC, Unisonic Futura 8300, PC-81 Personal Computer, CAC-3, Polybrain P118, Creon Electronics Power 3000 or NF300 jiaoXueDianNao) Brazilian clones Microdigital TK82 (ZX80 case, 1981) Microdigital TK82C (smaller case and 2K RAM, 1981) Microdigital TK83 (same case as original, but golden instead of black, 1982) Microdigital TK85 (ZX Spectrum case and 16K or 48K RAM, 1983) Prológica CP-200 (inverted video and larger case, 1982) Prologica CP200S cdSE Microcomputadores (Centro de Desenvolvimento de Sistemas Elétricos Ind. Com. Ltda.) Apply 300 Ritas do Brasil Ringo R470 (1983) Nova Electrônica/Prológica NE-Z8000 (1982) Engebrás AS-1000 (1984) Argentinean clones Czerweny CZ 1000 (1985) Czerweny CZ 1500 (1985) Czerweny CZ 1000 Plus (1986) Czerweny CZ 1500 Plus (1986) South Korean clones Samsung SPC-300 GoldStar FC-30 Boeun Peek PC-1000 (Timex Sinclair 1000 compatible, 1983) Modern clones In recent years retrocomputing enthusiasts created various clones of the ZX80/ZX81. ZX81+38 ZX80/ZX81 Double Clone and related ZX80/ZX81 Project ZX97 Minstrel Wilco/Baffa's one TELLAB TL801, an Italian clone designed in 2002 that can emulate both the ZX80 or ZX81. Selection between machines is made via a jumper. References External links Planet Sinclair: Computers: Clones and Variants Sinclair Nostalgia Products — Sinclair Clones ZX80 and ZX81 clones Lists of computer hardware Sinclair ZX80 clones Sinclair ZX81 clones ZX80