Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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09/07/1976 | US3979689 Differential amplifier circuit |
09/07/1976 | US3979688 Transistor amplifier of the Darlington type with internal bias providing low offset voltage and offset current drift |
09/07/1976 | US3979642 Electronic protective circuit |
08/31/1976 | US3978419 Temperature and supply voltage compensated amplifying device |
08/24/1976 | US3976955 Protective circuit for pulse width modulated signal amplifier |
08/17/1976 | US3975649 Electronic circuit using field effect transistor with compensation means |
08/10/1976 | US3974456 Amplifier output stage |
08/10/1976 | US3974455 Transistor amplifier |
08/10/1976 | US3974438 Apparatus for indicating over-current condition in a transistor amplifier |
08/10/1976 | US3974404 Integrated circuit interface stage for high noise environment |
08/10/1976 | US3973461 Distortion control circuit |
08/03/1976 | US3973215 Current mirror amplifier |
08/03/1976 | US3973214 Circuit to achieve low noise figure |
08/03/1976 | US3972949 Process for preparing glycol dimethyl ethers |
07/27/1976 | US3972004 Charge preamplifier |
07/27/1976 | US3972002 Dual feedback amplifier |
07/27/1976 | US3972001 Common mode rejection dynamic filter circuit |
07/27/1976 | US3971993 High capacity recirculating delay loop integrator |
07/20/1976 | US3970953 Distortion-free amplifiers |
07/20/1976 | US3970947 Multi-stage differential amplifier circuit with means for compensating the temperature drift of a constant current source transistor |
07/13/1976 | US3969679 Automatic crossover distortion correction circuit |
07/13/1976 | US3969637 Transistor circuit |
07/06/1976 | US3968451 Transistor amplifier |
07/06/1976 | US3968450 Transistor amplifier |
07/06/1976 | US3968382 Protective circuit for field effect transistor amplifier |
06/29/1976 | US3967295 Input transient protection for integrated circuit element |
06/29/1976 | US3967208 Amplifying integrated circuit in the MOS technology |
06/29/1976 | US3967207 Amplifier with over-current protection |
06/22/1976 | US3965433 Phase equalizer useable in a LIND amplifier |
06/22/1976 | US3965295 Protective system for stereo loudspeakers |
06/15/1976 | US3963993 Power amplifier using a plurality of parallel connected amplifier elements and having burn-out protection |
06/08/1976 | US3962607 Loudspeaker protective system |
06/01/1976 | US3961280 Amplifier circuit having power supply voltage responsive to amplitude of input signal |
05/25/1976 | US3959736 Loudspeaker protection circuit |
05/25/1976 | US3959735 Loudspeaker and amplifier protection circuit |
05/18/1976 | US3958185 Low noise amplifier |
05/18/1976 | US3958135 Current mirror amplifiers |
05/04/1976 | US3955151 Amplifier with a plurality of negative feedback circuits |
05/04/1976 | US3955147 Amplifier circuit |
05/04/1976 | US3955146 Circuit for coupling an antenna to a load |
05/04/1976 | US3955108 Transistor amplifier stage with device in its temperature compensated bias network used as preliminary amplifier |
04/27/1976 | US3953875 Capacitor structure and circuit facilitating increased frequency stability of integrated circuits |
04/27/1976 | US3953808 Solid state amplifier |
04/27/1976 | US3953807 Current amplifier |
04/20/1976 | US3952260 Distortion correction circuit |
04/20/1976 | US3952258 Parellel-connection of semiconductor systems with an arrangement for preventing thermal instability |
04/20/1976 | US3952256 Multi-impedance output for transistor power amplifier |
04/06/1976 | US3949317 Fast recovery limiting and phase inverting amplifier |
04/06/1976 | US3949316 Cascade-connected transistor amplifier |
03/23/1976 | US3946327 Amplifier employing complementary field-effect transistors |
03/23/1976 | US3946325 Transistor amplifier |
03/16/1976 | US3944944 Power amplifier with distortion control |
03/02/1976 | US3942128 Constant-voltage circuit |
03/02/1976 | US3942075 Semi-conductor thermal protection arrangement |
03/02/1976 | US3942046 Low output impedance voltage divider network |
02/24/1976 | US3940785 Semiconductor I.C. with protection against reversed power supply |
02/24/1976 | US3940683 Active breakdown circuit for increasing the operating range of circuit elements |
02/24/1976 | US3940678 Multi-input switching means |
02/17/1976 | US3939435 Power amplifier |
02/17/1976 | US3939434 Wideband DC current amplifier |
02/17/1976 | US3939433 Feedback circuit |
02/10/1976 | US3938057 Telecommunications signal amplifier |
02/10/1976 | US3938047 Control circuit for use with amplifier |
02/03/1976 | US3936759 Offset reduction apparatus for analog circuits |
02/03/1976 | US3936731 Amplifier with fast recovery after input signal overswing |
02/03/1976 | US3936473 Copper or noble metal salt, oxygen and organic acid catalyst |
01/27/1976 | US3935540 D.C. coupled impedance reducing circuit |
01/27/1976 | US3935513 Protective circuit for transistor amplifier |
01/20/1976 | US3934158 Switching circuit |
01/13/1976 | US3932774 Electronic monitoring system with short-circuit protection |
01/06/1976 | US3931583 Wideband differential amplifier |
01/06/1976 | US3931547 Protection circuit |