Variable gain controller

Details Variable gain controller Variable gain controller

1978-02-13

1979-09-18

Dahl, Lawrence J.

Amplifiers

With semiconductor amplifying device

Including gain control means

325414, 330283, 330288, H03G 310

Patent

active

041684729

ABSTRACT:
A variable gain controller comprising an amplifier having a feed back terminal which is connected to a variable resistor including a current controller for controlling current flowing through the variable resistor, a filter connected to the variable resistor for attenuating frequency components of input signals in accordance with the values of the variable resistor and a resistor inserted between output terminal of the amplifier and the connection of the variable resistor to the filter.

REFERENCES:
patent: 4032799 (1977-06-01), Sugimoto et al.
patent: 4045731 (1977-08-01), Tokunou et al.
patent: 4048569 (1977-09-01), Yamatani

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