Vintage Tube Amp

Up for sale, a 1972 Guyatone Reverb Jazz GA-1050 2×12 combo amp, freshly serviced and in excellent condition. Produced during the “lawsuit” era of Japanese guitar/amplifier production, this Guyatone combo is an extremely faithful copy of a Silverface Fender Pro Reverb, complete with “drip edge”-style aluminum trim. Loaded with a pair of EHX 6L6 power tubes and the original pair of “wideband type” Japanese-made alnico speakers, this Guyatone delivers glassy, balanced cleans very much in the vein of a Pro Reverb, with smooth, lightly compressed overdrive when pushing the amp towards 10 on the Volume dial. The Reverb Jazz GA-1050 features a dual-channel, dual-input design, with footswitchable Reverb and Tremolo on Channel Two. The amp retains all of its original transformers, and the power transformer has taps for both 100v and 117v operation, with a voltage switch on the back of the chassis. The original Japanese TBM pots are all present as well, with visible date codes from the 43rd week of 1972. Freshly serviced by our techs here at Mike & Mike’s Guitar Bar, this amp has been fully recapped to ensure ideal performance. All component voltages have been tested to ensure optimal functionality, and additional maintenance includes spraying out all pots and tensioning tube sockets. The original two-prong power cable is present, and a three-prong can be installed at no charge at the next owner’s discretion. Beyond the Electro-Harmonix 6L6 power tubes, the amp features all vintage Japanese-branded preamp tubes (likely original to the amp). Fender-style cosmetic touches include smooth black tolex, silver sparkle grillcloth with “drip edge” aluminum trim, a “Silverface” faceplate with turquoise silkscreen graphics, and a raised Guytatone badge. There is only light wear on the tolex and modest darkening of the grillcloth. Hardware includes the tilt-back legs, casters, and “Rhythm Machine” serial badge (72-prefix serial translates to’72 production).