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Sinclair ZX Spectrum 48K rubber key with composite video mod and original Sinclair PSU


Thanks for looking at our Sinclair ZX Spectrum 48k computer with PSU, upgraded with composite video modification to work on modern TV’s!

Sold out!


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

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

Issue 3 Board

RDR Spectrum 48k-SN_001-657350-IMG_4593Work done:

  • Changed voltage regulator for 2amp 78S05
  • Full recap – replaced all electrolytic capacitors
  • 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
  • Power socket replaced
  • Replaced ULA with tested 6C
  • New keyboard membrane fitted
  • Cleaned the cases inside and out
  • New faceplate
  • Re-capped PSU

Serial Number: 001-657350

RDR Spectrum 48k-SN_001-657350-IMG_4595

The Speccy has been tested for 2 hours using a diagnostic ROM.  Tape loading has also been tested using a MaxDuino.RDR Spectrum 48k-SN_001-657350-IMG_4594

This is a genuinely nice Sinclair ZX Spectrum 48k.  See pictures for detail.

Any questions please get in touch!

Additional information

Weight 3 kg
Dimensions 80 × 40 × 30 cm

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