

Jim Kelley Amplifiers were also the first guitar amplifiers to be offered with an optional power attenuator. JBL E-120 speakers were offered as an option. The amps were built as 1-12", or 1-10" combos, or as a head. The amps were offered with hardwood cabinets, or in a variety of vinyl-covered birch plywood cabinets in a variety of colors. These guitar amps were the first to employ a matched quartet of Sylvania 6V6GT output tubes.

The amplifiers produce 60 watts RMS at full power, and include a half power (30/60) switch.Īn improved version of the single-channel amp was released in 1980 which included reverb, an additional stage of gain, and optional foot switchable gain boost. The single-channel version of the amplifier employed modest gain in the preamp stages, Baxandall type bass and treble controls, a split load phase inverter, and four 6V6GT output tubes. Approximately 600 of these amps were built during that time. Jim Kelley Amplifiers is the trademark for the vacuum tube guitar amplifiers designed by Jim Kelley and manufactured by his company Active Guitar Electronics of Tustin, California between the years of 19.
