What is the ZX Spectrum power supply voltage? The psu voltage of a ZX Spectrum varies depending of which model it is you have. The output voltage from the ZX Spectrum 16K, 48K 128K psu is 9VDC. The output voltages from the ZX Spectrum +2A and +3 are -12VDC +12VDC and +5VDC.
ZX Spectrum Power Supply Specifications
ZX Spectrum 16K / 48K / +
- Input: 240V AC, 50Hz
- Output: 9V DC, 1.4A
- Centre Polarity: -ve (inner diameter is 2.5mm)
ZX Spectrum 128K:
- Input: 240V AC, 50Hz
- Output: 9V DC, 1.85A
- Centre Polarity: -ve
ZX Spectrum +2:
- Input: 240V AC, 50Hz
- Output: 9V DC, 2.1A
- Centre Polarity: -ve
ZX Spectrum +2A:
- Input: 240V AC, 50Hz
- Output: 5V DC 2A +12V DC 700mA -12VDC at 50mA.
- 5 Pin Din Plug
ZX Spectrum +3:
- Input: 240V AC, 50Hz
- Output: 5V DC 2A +12V DC 700mA -12VDC at 50mA.
- 5 Pin Din Plug
Sinclair ZX Spectrum Power Supply Polarity
ZX Spectrum 16K / 48K / + / 128K/ +2
ZX Spectrum +3
