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Sinclair ZX Spectrum+

A redesign of the original Spectrum by 1984 was long overdue, planning started in June of that year, and after a very short development spell it was released in October the same year.

This 48 KB Spectrum (development code-name TB) introduced a new QL-style enclosure with a much needed injection-moulded keyboard and a reset button, retailing for £179.95. Early on, the machine outsold the rubber-key model 2:1; however, early on some retailers reported very high failure rates, mostly with the new keys which could fall out if the machine was turned upside down.

The new design was also backed by a very expensive advertisement campaign, which showed the original rubber key machine being transformed on a conveyor belt into the new case.

As well as the new keys, a few tweeks to the layout were implemented, the space key was moved from the right to the bottom, and new cursor keys were either side of that.

Also two folding legs were put on the underside to lift the machine up to a more comfortable position to type.

The rear of the machine was unchanged from the previous model, with aerial out, the I/O expansion and the power socket.

The original Spectrum could be upgraded to the new case, either by a kit, or by sending it to Sinclair Research for the work to be done.

 

CPU   Zilog Z80A
SPEED   3.5 MHz
RAM   48k
ROM   16k

Manufacturer: Sinclair
Date: 1st June 1984



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Sinclair ZX Spectrum+ Manuals:

Item Manufacturer Date
A Course in BASIC Programming - ZX80 Operating Manual Science of Cambridge 1980
Disk Interface Manual (Technology Research) Technology Research 1984
Sinclair - ZX Spectrum Servicing Manual Sinclair Jan 1984
Sinclair ZX Spectrum +2 Manual Sinclair 1986
Spectral Manual (East German ZX Spectrum Clone) Hübner Elektronik 1988

Sinclair ZX Spectrum+ Articles:

Item Manufacturer Date
Memories - The Tatung Einstein (1) Unknown
Memories - My History of Computing - From a School Teacher Feb 2009

Other Systems Related To Sinclair ZX Spectrum+ :

Item Manufacturer Date
Prototype of MK14 Sinclair 1977
Science of Cambridge MK 14 + Original Keyboard Sinclair 1977
Science of Cambridge MK 14 - Original Kit Sinclair 1977
Science of Cambridge MK14 + Memory Expansion in wooden case Sinclair 1977
Science of Cambridge MK14 Sinclair 1977
Sinclair ZX80 8K Basic Sinclair 1980
Sinclair ZX81 with Basic EPROM Sinclair 1980
Sinclair ZX80 Prototype PDZ 4732 Basic ROM - Nine Tiles Sinclair 1980
Sinclair ZX80 Updated to ZX81 Sinclair 1980
Sinclair ZX80 Sinclair 1st June 1980
Sinclair ZX81 Kit Sinclair 1981
Sinclair ZX Spectrum Prototype Sinclair 1981
Sinclair ZX81 Issue One Sinclair 1981
Sinclair ZX81 - Signed by Rick Dickinson Sinclair 5th March 1981
Sinclair ZX81 with Custom Case/Keyboard Sinclair 5th March 1981
Argentinian Sinclair Spectrum Sinclair 1982
Sinclair Spectrum with Homemade Keyboard Sinclair 1982
White Replica ZX Spectrum (Millionth Edition) Sinclair 1982
Early Sinclair ZX Spectrum Computer Sinclair 1982
Timex Sinclair 1000 Sinclair 1982
Sinclair ZX Spectrum Console Sinclair 1982
Sinclair ZX Spectrum Console Sinclair 1982
ZX Spectrum Issue 2 With ULA Modification Sinclair 1982
Timex Sinclair 1500 Sinclair 1982
Sinclair ZX Spectrum Case (Signed) Sinclair 1st March 1982
Sinclair ZX Spectrum 48k Sinclair 1st March 1982
Sinclair ZX Spectrum 16K Sinclair 1st March 1982
Sinclair ZX Spectrum Computer - Early Issue Sinclair 23rd April 1982
Timex Sinclair 2068 Timex Sinclair November 1983 to 1989
Sinclair QL + SchÖn Keyboard Sinclair 1984
Investronica Sinclair Spectrum Sinclair 1984
Sinclair QL (German) Sinclair 1984
Sinclair QL (Signed) Sinclair 1984
Sinclair QL (US) Sinclair 1984
Sinclair QL (Property of Sinclair) Sinclair 1984
Sinclair QL Sinclair 1984
Sinclair ZX Spectrum +2 Sinclair 1986
Sinclair ZX Spectrum 128 Sinclair January 1986
Cambridge Z88 All In One Pack Sinclair 1987
Cambridge Z88 Sinclair 1987
Sinclair ZX Spectrum +3 (Currys Box) Sinclair 1st June 1987
Sinclair ZX Spectrum +3 Sinclair 1st June 1987
Sinclair PC200 Sinclair 1988
Cambridge Z88 With PC Link Kit Sinclair 1988

This exhibit has a reference ID of CH510. Please quote this reference ID in any communication with the Centre for Computing History.

 

Sinclair ZX Spectrum+

  Book Archive   [62]
  Games Archive   [1350]
  Software Archive   [109]
  Type-in Listings   [15]
  Peripherals   [74]
  Promotional Items   [9]

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