Sinclair ZX Spectrum 48K (Unit Only) – Professionally Repaired & Fully Tested

Description

Professionally Repaired Sinclair ZX Spectrum 48K Computer

If you have a drawer full of Sinclair power supplies and a stack of original cassettes but a computer that refuses to boot, this is the solution you’ve been looking for. We provide a Sinclair ZX Spectrum 48K (Unit Only) that has been stripped, serviced, and repaired by hand to ensure it meets modern reliability standards while retaining its 1980s soul.

The Ideal Solution for Existing Spectrum Owners

Buying a full retail boxed set is expensive and often redundant if you already have the necessary peripherals. This “unit only” listing allows you to:

• Save Space: Don’t pay for extra cables or bulky manuals you already own.
• Upgrade Reliability: Replace a “temperamental” or dead board with a professionally serviced unit.
• Budget-Friendly Restoration: Focus your investment on the core hardware.

Rigorous Testing and Quality Assurance

Every console we sell isn’t just “power-on tested”; it goes through a comprehensive diagnostic gauntlet to ensure it won’t let you down during a marathon session of Manic Miner.

1. Keyboard Matrix Check: Every rubber key is tested for responsiveness and tactile feedback.
2. RAM & ROM Diagnostics: Full internal memory cycles to ensure no bit-errors occur during gameplay.
3. Soak Testing: The unit is left running for an extended period to ensure thermal stability.
4. Load/Save Verification: Testing the EAR and MIC ports to ensure compatibility with original tape decks and modern TZX players.

Technical Specifications and Compatibility

This is the classic 48K “Rubber Key” model, the definitive version of Sir Clive Sinclair’s masterpiece.

• Processor: Zilog Z80A.
• Memory: 48K RAM (Fully tested).
• Compatibility: Works with original Sinclair UK 9V PSUs and standard RF/Composite leads (depending on your specific TV setup).

Restoration Notes

As these are vintage units, they may show minor signs of use consistent with their age, but each has been selected for its quality and structural integrity. By choosing a repaired unit, you are helping to preserve computing history and keeping these magnificent machines out of landfills.

Please Note: This listing is for the computer unit ONLY. You will need your own power supply (PSU) and television connection leads to operate this machine