I have a vintage Roland VK-09 keyboard that I got on ebay, but I need a footswitch to control the chorus vibrato speed. There are two buttons on the unit for Fast and Slow, and on the back there is 1/4 inch plug-in for "Vibrato Fast/Slow". Does anyone know what type of foot switch will work with this unit? I looked on the Roland web site and could not find any information about the VK-09. Thanks
