![]() ![]() Having said this, there are a lot worse guitars out there, and as well as being historically important, the 1820 bass can certainly provide the goods when required. Schematics Musicmaster Bass Musicmaster Bass 6AQ5 Faceplate Front: In, In, Vol/Power Sw. Shop Fender Musicmaster Bass Amps on Reverb Originally released during the Silverface era of the 1970s as a student model practice amp, the Fender Musicmaster Bass combo was rated at a fierce 12 watts, powered by a pair of 6AQ5 valves (later changed to a pair of 6V6s) and outfitted with a rather flimsy Oxford or CTS 12-inch speaker. Over the course of the 70s, the Japanese output improved dramatically, and in many ways these early 70s models are a low point for the brand. Power: 2 x 6AQ5 (7 pin minature pentode) or 2 x 6V6. These new Epiphones were based on existing Matsumoku guitars, sharing body shapes, and hardware, but the Epiphone line was somewhat upgraded, with inlaid logos and a 2x2 peghead configuration. Man I love it when simple fixes solve everything Nylon washers on both sides of the cooling fins and the amp is silent. The Matsumoku factory had been producing guitars for export for some time, but the 1820 bass (alongside a number of guitar models and the 5120 electric acoustic bass) were the first Epiphone models to be made there. Good news, I re-did the heater wires and it cut the noise in half at least already,so I feel positive about the new filter caps solving the rest. All good news :) What are the new dissipation figures for the plates and screens These figures are for the 6v6GT tube, close enough I guess. This is where it is a bit grey on the info. One tube socket has been replaced in the past on this amp. Fender Musicmaster Bass Amp Dimed Watch on The interstage transformer is also intriguing. Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photos, Sound clips. By the end of the 1960s, a decision had been made to move Epiphone guitar production from the USA (at the Kalamazoo plant where Gibson guitars were made), to Matsumoto in Japan, creating a line of guitars and basses significantly less expensive than the USA-built models (actually less than half the price). Yes the amp uses 6AQ5 power tubes.The earlier Fender Musicmaster Bass amps all came fitted with 6AQ5's. ![]()
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