-designed and made in U.S.A.-, modern solid-state circuitry, simple screw-in replacement of original transistor circuit... see more-designed and made in U.S.A.-, modern solid-state circuitry, simple screw-in replacement of original transistor circuit board inside amplifier box
Same features as the knife-blade type top post version, but designed for side post batteries.Same features as the knife-blade type top post version, but designed for side post batteries.