![]() We have the usual name-rank-serial number information here. The open cabinet is clean and functional. Unfortunately, the lube spread onto the front panel around the controls. The distortion function is an attempt to add ‘fuzz’ and is nothing like the metal/shred distortion heard today.Ī few attempts had been made over the years to clean the controls. Many of the later ones did not have a reverb tank at all. The presence of the reverb function demonstrates that this is an early unit. The tone stack includes a ‘bright’ function, a precursor of the ‘presence’ control seen on amplifiers today. The high and low level input jacks are typical for the era. ![]() Starting our tour, the power switch combines the ON/OFF function with the AC polarity reversal switch seen on many tube amps of the same period. ![]() ![]() On the exterior, this amp was in very good shape considering that it had been built forty years ago! Could the Unbrokenstring Crew revive this unit? This like-new specimen had been suffering from a strange ailment, then went mute. A secret weapon of many an acoustic and jazz artist, this mid-seventies line of Yamaha solid state amps were well-regarded among those few who knew about them. ![]()
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