Pro

Model/Circuit Number: Years of Production: 1993 – 1995 Era: Configuration: Combo Controls: Black, forward facing w/ white labels Knobs: Black

Model/Circuit Number: PR448 Years of Production: 2001 – 2003 Era: Pro Tube Series Configuration: Combo Controls: Black, forward facing w/

Model/Circuit Number: Years of Production: 1993 – Present Era: Configuration: Combo Controls: Chrome top facing w/ white screened labels, controls

Model/Circuit Number: AB668, AA1069  Years of Production: 1968-1982 Era: Silverface Configuration: Combo Controls: Silver, forward facing w/ blue labels Knobs:

Model/Circuit Number: AA165  Years of Production: 1965-1967 Era: Blackface Configuration: Combo Controls: Black, forward facing w/ white labels Knobs: Black

Model/Circuit Number: AA763  Years of Production: 1963-1965 Era: Blackface Configuration: Combo Controls: Black forward facing w/ white labels Knobs: Black

Model/Circuit Number: 6G5, 6G5-A  Years of Production: 1960-1963 Era: Brownface Configuration: Combo Controls: Brown forward facing w/ white screened labels,

Model/Circuit Number: 5E5 (55), 5E5-A (56-60)  Years of Production: 1955-1960 Era: Narrow Panel Configuration: Combo Controls: Chrome top facing w/

Model/Circuit Number: 5D5  Years of Production: 1953-1955 Era: Wide Panel Configuration: Combo Controls: Chrome top facing w/ white screened labels,