Pro Co
- (1979-81) The Rat
- (1979-81) The Rat w/Original Packaging
- (1979-81) The Rat w/Perhaps Early Knob Configuration?
- (1981) The Rat
- (1981) The Rat w/Tone Knob
- (1982) The Rat (V2)
- (1983) The Rat
- (1984) Small Box RAT (Known as the Filter Rat)
- (1984) Small Box RAT (Known as the Filter Rat) w/Original Packaging
- (1984-88) Small Box RAT (Unknown Exact Date of Manufacture)
- (1985) Small Box RAT (Known as the Filter Rat)
- (1985) Small Box RAT (Known as the Filter Rat) w/Original Packaging
- (1985) White Face Rat (Reissue) w/Original Packaging
- (1986) Small Box RAT (Known as the Filter Rat)
- (1986) Small Box RAT (Known as the Filter Rat) w/Original Packaging
- (1987) Rat 2 (Known as the Filter Rat)
- (1988) Rat 2 w/Original Packaging
- (1988) Small Box RAT (Known as the Filter Rat)
- (1989) Rat 2
- (1990) Rat 2
- (1991-1998) Rat 2
- (1991-1998) Rat 2 w/Original Packaging
- (1991-2005) The Rat (Reissue)
- (1991-2005) The Rat (Reissue) w/Original Packaging
- (1992) Rat 2
- (1994) Rat 2
- (1995) Rat 2
- (1997) Rat 2
- Rat 2 (Unknown Year of Manufacture)