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Class Information
Number: 330/277
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including field effect transistor
Description: Subject matter wherein a field effect transistor (FET) is utilized in the amplifier circuit.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
4069431 Amplifier circuit Jan. 17, 1978
4068183 Transistorized single ended push-pull amplifier having no cross-over distortion Jan. 10, 1978
4068184 Current mirror amplifier Jan. 10, 1978
4068254 Integrated FET circuit with input current cancellation Jan. 10, 1978
4068090 Hearing aid Jan. 10, 1978
4061983 Transistor amplifier with protective circuit Dec. 6, 1977
4061962 Current mirror amplifier augumentation of regulator transistor current flow Dec. 6, 1977
4059809 Differential amplifier Nov. 22, 1977
4059811 Integrated circuit amplifier Nov. 22, 1977
4053847 Self-feedback type low-noise charge sensitive amplifier Oct. 11, 1977
4053841 Microwave frequency discriminator comprising an FET amplifier Oct. 11, 1977
4053842 Microwave frequency discriminator comprising an FET amplifier Oct. 11, 1977
4048590 Integrated crystal oscillator circuit with few external components Sep. 13, 1977
4047059 Comparator circuit Sep. 6, 1977
4045747 Complementary field effect transistor amplifier Aug. 30, 1977
4042839 Low power dissipation combined enhancement depletion switching driver circuit Aug. 16, 1977
4037169 Transistor amplifier Jul. 19, 1977
4035738 Low noise amplifier Jul. 12, 1977
4034307 Current amplifier Jul. 5, 1977
4032864 Electronic circuit having a misfet as an amplifying element Jun. 28, 1977
4025873 Broadband, microwave, two-stage, stagger-tuned, field effect transistor amplifier May. 24, 1977
4023113 Voltage controlled filter May. 10, 1977
4011518 Microwave GaAs FET amplifier circuit Mar. 8, 1977
4009401 Fade-in and fade-out switching circuit Feb. 22, 1977
4008442 Signal amplifier circuit with a field effect transistor having current unsaturated triode vacuum tube characteristics Feb. 15, 1977
4004164 Compensating current source Jan. 18, 1977
3997852 RF amplifier Dec. 14, 1976
3996524 Linear amplifier utilizing adaptive biasing Dec. 7, 1976
3993869 Amplifying circuit for use with a high impedance source transducer Nov. 23, 1976
3991381 Linear high power transistor amplifier Nov. 9, 1976
3986041 CMOS digital circuits with resistive shunt feedback amplifier Oct. 12, 1976
3986060 Compound transistor circuitry Oct. 12, 1976
3986043 CMOS digital circuits with active shunt feedback amplifier Oct. 12, 1976
3972004 Charge preamplifier Jul. 27, 1976
3968452 Signal level control circuit Jul. 6, 1976
3967209 Discriminating sonic detection system Jun. 29, 1976
3967208 Amplifying integrated circuit in the MOS technology Jun. 29, 1976
3953808 Solid state amplifier Apr. 27, 1976
3953807 Current amplifier Apr. 27, 1976
3950709 Amplifier for random access computer memory Apr. 13, 1976
3947727 Protection circuit for insulated-gate field-effect transistors Mar. 30, 1976
3946327 Amplifier employing complementary field-effect transistors Mar. 23, 1976
3943286 Variable gain control circuit Mar. 9, 1976

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