Model/Circuit Number: Years of Production: 1983 – 1986 Era: Configuration: Combo, Head Controls: Black, forward facing w/ white labels Knobs: Black skirted w/ chrome center, numbered 1 – 10 Faceplate Front: In 1, In 2, Vol (Pull for Bright), Treb, Mid, Bass – Vol (Pull for Ch Select), Gain, Master Vol, Treb, Mid (Pull for [...]