Solid state musical instrument amplifier with vacuum tube signal magnitude limiting
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United States of America Patent
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Mar 10, 1998
Grant Date -
N/A
app pub date -
Jan 14, 1994
filing date -
Jan 14, 1994
priority date (Note) -
Expired
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Abstract
A musical instrument amplifier has all solid state amplification stages but incorporates a pair of vacuum tube signal magnitude limiters to provide vacuum tube type sound when the amplifier is operating in a nonlinear condition. The vacuum tubes are connected to have no supply potential so as to minimize microphonics and are each provided with a small amount of reverse bias to provide a desirable shape of the tube conduction curve and space charge suppression.
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