Amplifiers – Combined with automatic amplifier disabling switch means
Patent
1989-09-08
1991-04-30
Mullins, James B.
Amplifiers
Combined with automatic amplifier disabling switch means
330 86, 330145, 381 61, H03G 308
Patent
active
050121995
ABSTRACT:
A first amplifier stage receives electrical signals generated by a musical instrument and provides an output signal. A second amplifier stage is driven by the output signal from the first amplifier stage as switch selectively connects an attenuator to the first amplifier stage to attenuate the output signal thereof and selectively connects a gain modifying circuit to the first stage. In a first mode, the attenuator is connected to the first amplifier stage and the gain modifying circuit is disconnected from the first amplifier stage. As a result, an output signal from the first amplifier stage has a level which drives the second amplifier stage to provide a substantially linear output signal therefrom. In a second mode, the attenuator is disconnected from the first amplifier stage and the gain modifying circuit is connected to the first amplifier stage. As a result, an output signal from the first amplifier stage has a level which will overdrive the second amplifier stage to provide a non-linear saturated signal therefrom having a first desired amount of increased harmonic saturation.
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Mullins James B.
St. Louis Music, Inc.
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