Dubbvision

Zx Spectrum Hardware ZX Spectrum 48K motherboard (Issue 3B  1983, heat sink removed) The Spectrum is based on a Zilog Z80A CPU running at 3.5 MHz (or NEC D780C-1 clone). The original model Spectrum has 16 KB (161024 bytes) of ROM and either 16 KB or 48 KB of RAM. Hardware design was by Richard Altwasser of Sinclair Research, [...]