{"product_id":"gibson-maestro-reverb-echo-ga-1-rt-tube-amplifier-1963-6776","title":"Gibson Maestro Reverb-Echo GA-1 RT Tube Amplifier (1963)","description":"Gibson Maestro Reverb-Echo GA-1 RT Model Tube Amplifier (1963), made in Kalamazoo, Michigan, serial # 109534, tweed finish. \u003cbr\u003e \u003cbr\u003eHeight is 14 in. (35.6 cm.), 19 1\/2 in. (49.5 cm.) width, and 7 in. (17.8 cm.) deep. \u003cbr\u003e\u003cbr\u003eThe GA-1 RT was manufactured by Gibson for its sub-brand, Maestro. Intended for use by accordionists, the Maestro Reverb-Echo functions as a stand alone amp but derives its name from its proposed use in concert with a second amp to produce a reverb effect. Although it is at this time unclear how one might achieve this effect sans reverb tank or output jack, the GA-1RT is a fabulously raunchy little amp. With two controls (one to attenuate volume and the other being a speed control for tremolo), an 8\" speaker and the somewhat odd 3 tube compliment of a 12AX7, 6BM8 and a 5Y3 this amplifier is cousin in tonal characteristics to the big box tweed Fender Princeton's that preceded it by a few years with the added feature of tremolo.\u003cbr\u003e\u003cbr\u003eSome text worn from chassis, a small indent on the top, scuffing scratches and a single burn mark indicate that this was well cared for if often used little practice amplifier. Excellent Condition.","brand":"Gibson","offers":[{"title":"Default Title","offer_id":46853411307660,"sku":"6776","price":750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/8702\/3756\/files\/01_ae89b649-59f1-4511-b642-8c997aa6650f.jpg?v=1774338003","url":"https:\/\/retrofret.com\/products\/gibson-maestro-reverb-echo-ga-1-rt-tube-amplifier-1963-6776","provider":"RetroFret","version":"1.0","type":"link"}