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Sinclair ZX81 computer – Refurbished and Upgraded to 32K RAM and HRG Ready

£119.99

Thanks for looking at our Sinclair ZX81 computer – Refurbished and Upgraded to 32K RAM and HRG (Hi Res Graphics) Ready!

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Description

Thanks for looking at our Sinclair ZX81 computer – Refurbished and Upgraded to 32K RAM and HRG (Hi Res Graphics) Ready!

Condition is Seller refurbished.

We’ve performed the following work on this little beast:

  • VLA81 Replacement ULA fitted
  • Composite video mod with our own custom PCB that replaces the insides of the RF modulator with a PCB that allows you to connect a standard phono to phono lead to the AV input (composite) on your LCD TFT TV
  • DC-DC converter fitted to replace the ageing 7805 regulator. Consumes less power and provides more stable voltage allowing the ZX81 to run much cooler – even without the heatsink (removed)
  • 32K RAM fitted on a custom PCB with HRG8 extension to give you 16K for BASIC and an extra 16K to run hires HRG8 games

All in all, this is a well upgraded, refurbished ZX-81 with a case which is very tidy.

The actual screen is crystal clear with no lines or patterns on the display.

Also available on eBay – http://ebay.us/MXrHyO?cmpnId=5338273189

Additional information

Weight 2 kg
Dimensions 37 × 22 × 12 cm

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