JHS Mike Campbell Calhoun overdrive/fuzz. Version 1 and number 28 of 250 made. This version has NOS germanium transistors. Version 2 uses silicon transistors. Dated 8-24-16. The right side is a fuzz effect and the left is overdrive. A mini toggle switch selects which is first in the signal chain. In very good condition. Requires standard 9 volt power supply, not included.Comes as shown.