Upgraded Sinclair Spectrum 48K Rubber Keys with ZX power supply


Thanks for looking at our Sinclair Spectrum 48K computer – Upgraded to work with new tv’s and comes with an original Sinclair PSU.

In stock


Sinclair Spectrum 48K with rubber keys and video output upgraded.  Comes with ZX power supply.

We have completed the following work:RDR Spectrum 48k - 001-052148-IMG_3215

  • Changed the RF output for a composite video modification so that it will work on all modern TV’s through their AV Video phono connector.
  • Checked and replaced any electrolytic capacitors that were bad – in this case a full re-cap.
  • Lower RAM caps replaced with 1uF to improve video output.
  • 1 lower RAM chip socketed and replaced.
  • TR4 and TR5 replaced, D15, D11 and R55 replaced.
  • IC16 to IC25 replaced.
  • Resoldered crystal oscilator.
  • Cleaned the cases inside and out.
  • Fully tested the Spectrum with diagnostics for a few hours to make sure RAM was working well. All tests passed.
  • Tested it playing games.
  • Tested every key to make sure the keyboard works.
  • Tested the electrolytic capacitor in the ZX power supply and fully tested its output.

RDR Spectrum 48k - 001-052148-IMG_3217Serial Number: 001-052148

This is a genuinely nice, clean ZX Spectrum that has been refurbished well so that it will serve a good number more years to come.

Any questions please get in touch!

Additional information

Weight 2 kg
Dimensions 45 × 35 × 16 cm

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