The Sinclair ZX Spectrum+ was an upgraded version of the hugely popular ZX Spectrum, featuring a full-size keyboard for improved usability. This model retained the same internal hardware as the original 48K Spectrum but offered a more professional design, appealing to both home users and programmers. Its large library of games, alongside its educational software, made it a staple of British computing in the 1980s.
Hardware Specifications
Processor: Zilog Z80A running at 3.5 MHz
Graphics: 256×192 pixel resolution with 15 colors (via dithering techniques)
Memory: 48 KB of RAM
Storage: Cassette tapes for software loading (up to 1000 baud transfer speed)
Audio: Single-channel beeper sound, capable of basic tones and sound effects
Connectivity: Expansion port for peripherals, cassette input/output, and RF video output for connection to a TV
Keyboard: Full plastic keyboard with 58 keys, an improvement over the rubber keys of the original model
Original Release Date: October 1984
Discontinued: 1992
Cost (New in 1984): £179.95
Cost (In 2024 Price): £600
Modifications I have performed:
Removed the original UHF output and replaced it with a composite output.
Replaced keyboard membrane, as it was faulty when I purchased the computer.
Added divMMC Future that allows software to be loaded via SD Card connected to adaptor plugged into the Expansion port.
Replaced power supply with a modern one with a more stable voltage output.
Cost to me for computer £25.00
Cost to me for repairs and upgrades £89.97
