Cathode bias AC80/100s - serial numbers 101 - 300
Later cathode bias AC80/100s - serial numbers 300 - 430
Bands with AC80/100s (1964 - 1965)
Early JMI promotional material: 1961-1962
Early Fixed Bias AC100s (the "100W Amplifier") - serial nos 430-730
Later Fixed Bias AC100s (the AC100 Mk 2) - serial nos 730-2200
Bands with AC100s (1965 - 1970)
Vox Public Address Amplifiers, Mixers and Speakers