Electronic amplifier having a transmission factor that is variable by means of a controllable voltage, specifically an expander
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United States of America Patent
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Apr 23, 1985
Grant Date -
N/A
app pub date -
Dec 17, 1982
filing date -
Dec 21, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electronic amplifier having a transmission factor which can be varied by means of a control voltage, specifically an expander. A switch is provided for selective operation of the amplifier with a fixed control voltage or with a variable control voltage, with this switch being coupled with circuitry for reducing, during operation of the amplifier with a fixed control voltage, the output voltage of the control circuit generating the variable control voltage.
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