ZX81 Power Supply / Wilco81 is a 9V DC power supply optimized for ZX81, Wilco81, and clones. It provides the stable and clean power your machine needs to operate correctly, with overvoltage and short-circuit protection.
Main features
| Output Voltage | 9V DC |
|---|---|
| Maximum Current | 1A (recommended 500mA minimum) |
| Connector | Barrel jack 2.1mm (positive internal) |
| Input | 110-240V AC, 50/60Hz (universal) |
| Protections | Overvoltage, short circuit, overcurrent |
Compatibility
- Original Sinclair ZX81
- Wilco81 and ZX81 clones
- Timex 1000, Timex 1500
- Any device requiring a 9V DC barrel jack 2.1mm
How to use it
- Connect the DC cable to the power port of your ZX81 or Wilco81
- Connect the plug to the power outlet
- Turn on the ZX81
- If the image appears correctly, the font is working well
Included
- 1x 9V DC Power Supply
- Integrated DC cable with barrel jack 2.1mm
Important: Check the polarity before connecting. This power supply uses internal positive (center+) which is the standard for ZX81. Using a power supply with incorrect polarity may permanently damage your machine.
Tips: If your ZX81 restarts or shows erratic behavior, the original power supply may be degraded. A new and stable power supply resolves many apparent hardware problems.











