![]() This model was later upgraded to the GA1RVT with an additional tube / transformer to operate the reverb. This model was originally fitted with a foot-switched reverb tank to be fed in a very awkward way from an independent separate amp where this amp was to 'echo' the original signal. Single-ended / Class A circuit 12AX7 pre-amp, 6BM8 output with the front triode section operating the Tremolo function, and a 5Y3 rectifier. Breaks up easily, adaptable, simple to work on. If you like the sound clean and round, change coupling caps to. Unless you have and want a museum piece, it will need new / increased power supply caps and resistors, fresh cathode bypass caps, and a new volume pot. Very fine practice, small venue, or recording amp. Schematic with 1x 12AX7, 1x 6BM8 & 1x 5Y3GT (Gibson) ![]() Harmony Central Review Maestro Reverb/Echo Combo GA-45T Maestro (Two-Tone), Standard (Tweed)ĨW 1x8" Guitar Combo with Reverb and Tremolo GA-40 Les-Paul (Two-Tone), GA-40T Les-Paul (Tweed) GA-2RT Maestro Deluxe Reverb-Echo (tweed) GA-1RVT Maestro Reverb-Echo (aka Maestro M-1RVT) (tweed)
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