The J-Con AC to DC Converter turns either a 230V or 110V mains supply (depending on model) into a DC supply of the same Voltage, allowing AC yokes to operate as DC ones. This means operators can look for and find deeper, sub-surface defects than would be possible using just AC waveforms.
Both the 230V and 110V variant feature dual sockets so two yokes can be operated from the same converter.
The J-Con AC to DC Converter will work with all Johnson & Allen yokes and other brands of yokes with similar current requirements.