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Voltmace Analogue Digital User port interface (top)
Voltmace Analogue Digital user Port Interface (bottom)
Voltmace Analogue Digital User Port Interface (open)
The Voltmace A/D User Port Interface, plugs into the BBC Micro's Analogue and User ports (the User port is connected by the ribbon cable) and allows Voltmace Delta 14 joysticks to be used with the full 24 button programmable keypad. It can also be used as an A/D port splitter.