Many modern amp makers pay homage to the legendary Alexander Dumble by building interpretations of his classic—and virtually unobtainable—combos and heads.
One of Joe Kelemen’s new Prototype Series, the Over-Drive is a single-channel head with a power section that clips at 30 watts. With a footswitchable overdrive boost that kicks in two additional gain stages, the Over-Drive can generate up to 60 watts when fully cranked. Its preamp includes a “D”-style feedback circuit, a full tone stack, a bright switch, and a 3-way mid boost.
Other features include Drive and Level controls, as well as a rear-panel Trim knob that allows you to dial in how hard the clean preamp pushes the overdrive section.
“I use meticulous, old-school, point-to-point internal wiring,” says Kelemen, “and encase the leads in Teflon tubing. With this style of building, the parts themselves connect the circuit. I’ve designed this low-wattage amp to allow guitarists to really push the power tubes on a club stage.”
The amp accepts 6V6s, EL34s, and 6L6s, and to accommodate these different power tubes, users can easily adjust the bias on the rear panel with a 20-turn trimmer and current test points. This Over-Drive sports an optional Triode/Full Power switch.