The US Vox V1081 and 1084 solid state Berkeley II and Berkeley III included this accessory three button foot pedal. This pedal controlled reverb, tremolo and MRB (mid range boost). The MRB foot switch is unique in that it does not have a latching mechanism. It is a "momentary" style switch. One must hold the button down to engage the effect. When you release the button, MRB is turned off. Foot switch has not been tested.
This product would be a great fit for vintage audio enthusiasts looking for a high-quality, functional and authentic reproduction of a 1966 vintage foot switch.
