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Sinclair ZX Spectrum + 48K with composite video mod and original Sinclair PSU – Rare Issue 4A Board


Thanks for looking at our Sinclair ZX Spectrum + 48k computer with PSU – Rare Issue 4A Board.  Upgraded with composite video modification to work on modern TV’s!

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Thanks for looking at our listing for this Sinclair ZX Spectrum + 48k

This really is another nice Spectrum + that we are selling from our collection of retro computers.

RDR Spectrum+ SN 148-102137IMG_4662RARE Issue 4A Board

Work done:

  • Replaced voltage regulator with a traco power switching regulator to help reduce the noise that traditionally comes with these Issue 4A boards
  • Replaced C5 to C8 with 105 1uF ceramic caps
  • Replaced IC7
  • Changed all electrolytic capacitors
  • Replaced the power socket
  • New keyboard membrane fitted
  • Composite mod performed – replaced the innards of the RF modulator with a PCB that will let you use the RF phono socket on the back of the Spectrum+ to connect to a newer TV AV socket
  • Cleaned the cases inside and out

Serial Number: 148-102137

RDR Spectrum+ SN 148-102137-IMG_4666RDR Spectrum+ SN 148-102137-IMG_4661The Speccy has been tested for 2 hours using a diagnostic ROM. Tape loading has also been tested using a MaxDuino.  Comes with a genuine Spectrum PSU that has been recapped.

This is a genuinely nice Sinclair ZX Spectrum + 48k.  There are some marks on the case as you can see from the pictures but all in all a really nice Spectrum.

The new switching regulator means you don’t need a heat sink but we’re happy to provide the original heat sink if you’d still like it.  Just let us know when you place the order.

Any questions please get in touch!

Additional information

Weight 3 kg
Dimensions 80 × 40 × 30 cm

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