Sinclair Spectrum +

The Spectrum was among the first mainstream-audience home computers in the UK, similar in significance to the Commodore 64 in the USA.  The introduction of the ZX Spectrum led to a boom in companies producing software and hardware for the machine, the effects of which are still seen; some credit it as the machine which launched the UK IT industry.  Licensing deals and clones followed, and earned Clive Sinclair a knighthood for “services to British industry”.

Processor Type: Zylog Z80

Processor Speed: 3.5MHz

RAM: 48 KB


Display: Connection via UHF for TV Tuner

Sound: One Channel

Storage: None Internal, External Cassette, Microdrive tape loop storage

Network: ZX Net (to allow communication between more than one Spectrum)

Original Release Date: October 1984

Discontinued: 1992

Cost (New in 1984): £179.95

Cost (In 2018 Price): £578.59


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


1 thought on “Sinclair Spectrum +”

  1. Zachary says:

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