Wassell Solid State 6V DC Positive Earth Voltage Regulator — replaces MCR2/RB108 Compatible with MCR2 and RB108 mechanical cut-out units and E3L, E3N type dynamos Compact finned heat sink design for space-saving installation Unit small enough to conceal inside the original MCR2 cut-out box casing Polarized for positive earth only and cannot be reversed Solid state 6V regulator specified as a 6V Positive regulator by Wassell .
