| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 05/16/1978 | US4090146 Clipping indicator circuit for transistor amplifier |
| 05/09/1978 | US4088962 Self biasing differential amplifier |
| 05/09/1978 | US4088961 Operational amplifier driver circuit |
| 05/09/1978 | US4088904 Capacitive transistorized signaling device |
| 05/09/1978 | US4088902 Channel coupling |
| 05/02/1978 | US4087762 Cable equalization resonant amplifier circuit |
| 05/02/1978 | US4087761 Audio power amplifier |
| 05/02/1978 | US4087760 Transistor amplifier circuit |
| 05/02/1978 | US4087759 Power amplifier devices |
| 04/25/1978 | US4086543 Travelling wave hybrid junction amplifier |
| 04/25/1978 | US4086542 Complementary push-pull amplifier |
| 04/25/1978 | US4086541 Time division multiplexing amplifier |
| 04/18/1978 | US4085383 Matrix selection amplifier circuit for low impedance heads in a magnetic disc memory device |
| 04/18/1978 | US4085382 Class B amplifier |
| 04/18/1978 | US4085381 Amplifiers |
| 04/18/1978 | US4085379 Amplifier for floating voltage source |
| 04/18/1978 | US4085365 Earphone adapter for aircraft radios |
| 04/04/1978 | CA1029103A1 Analog signal sample amplifier with automatic gain control and error compensation |
| 03/28/1978 | US4081758 Low distortion signal amplifier arrangement |
| 03/28/1978 | US4081757 Parallel power amplifier circuits |
| 03/28/1978 | US4081731 Pulse width modulated servo amplifier with over-current protection |
| 03/21/1978 | US4080577 Semiconductor integrated circuit |
| 03/21/1978 | US4080107 Bellows pump and pumping plant for oil-filled electric cables |
| 03/14/1978 | US4079336 Stacked transistor output amplifier |
| 03/14/1978 | US4079333 Audio amplifier |
| 03/14/1978 | US4079332 High gain differential amplifier |
| 03/14/1978 | US4079331 Amplifier system with special feedback circuits |
| 03/07/1978 | US4078208 Linear amplifier circuit with integrated current injector |
| 03/07/1978 | US4078207 Push-pull transistor amplifier with driver circuitry providing over-current protection |
| 03/07/1978 | US4078206 Differential amplifier |
| 02/28/1978 | US4077013 Audio power amplifier with automatic bias control |
| 02/28/1978 | US4077012 Amplifier devices |
| 02/21/1978 | US4075576 Sensitive high speed solid state preamp |
| 02/21/1978 | US4075575 Input stage for fast-slewing amplifier |
| 02/21/1978 | US4075572 Isolation amplifier having improved fidelity |
| 02/21/1978 | US4075515 Digital differential amplifier for ccd arrangements |
| 02/21/1978 | US4075514 Sensing circuit for semiconductor charge transfer devices |
| 02/14/1978 | US4074205 Input stage for fast-slewing amplifier |
| 02/14/1978 | US4074087 Bidirectional voice frequency repeater |
| 02/14/1978 | US4074076 Chopper-multiplexer system for measurement of remote low-level signals |
| 02/07/1978 | US4072908 Audio amplifier with constant current consumption |
| 02/07/1978 | US4072907 Amplifier circuit |
| 01/31/1978 | US4071830 Complementary field effect transistor linear amplifier |
| 01/31/1978 | US4071823 Two-wire type amplifier |
| 01/31/1978 | US4071775 Charge coupled differential amplifier for transversal filter |
| 01/17/1978 | US4069461 Amplifier circuit having two negative feedback circuits |
| 01/17/1978 | US4069431 Amplifier circuit |
| 01/10/1978 | US4068254 Integrated FET circuit with input current cancellation |
| 01/10/1978 | US4068187 Audio-frequency power amplifiers |
| 01/10/1978 | US4068186 Circuit for compensating for nonlinear characteristics in high-frequency amplifiers |
| 01/10/1978 | US4068184 Current mirror amplifier |
| 01/10/1978 | US4068183 Transistorized single ended push-pull amplifier having no cross-over distortion |
| 01/10/1978 | US4068140 MOS source follower circuit |
| 01/10/1978 | US4068090 Hearing aid |
| 01/03/1978 | US4066979 Negative resistance microwave circuit comprising one or more pairs of diodes |
| 01/03/1978 | US4066975 Audio amplifier with improved stability |
| 01/03/1978 | US4066974 Isolation amplifier |
| 01/03/1978 | US4066973 Analog signal isolator |
| 01/03/1978 | US4066965 RF GTWT Saturating circuit |
| 12/27/1977 | US4065724 Balanced low impedance differential input line preamplifier |
| 12/27/1977 | US4065723 Tuned radio frequency amplifier with back to back varactor diodes connected through a common cathode lead |
| 12/27/1977 | US4065646 Power converter |
| 12/20/1977 | US4064463 Amplifier circuit |
| 12/13/1977 | US4063186 Broadband millimeter wave amplifier |
| 12/13/1977 | US4063185 Direct coupling type power amplifier circuit |
| 12/13/1977 | US4063149 Current regulating circuits |
| 12/06/1977 | US4061987 Voltage-controlled type oscillator |
| 12/06/1977 | US4061984 Transistor power amplifier for transmitting systems |
| 12/06/1977 | US4061983 Transistor amplifier with protective circuit |
| 12/06/1977 | US4061930 Base drive inhibit circuit |
| 11/29/1977 | US4060770 Differential amplifier |
| 11/22/1977 | US4059811 Integrated circuit amplifier |
| 11/22/1977 | US4059809 Differential amplifier |
| 11/22/1977 | US4059808 Differential amplifier |
| 11/22/1977 | US4059807 Pulse width modulated amplifier |
| 11/22/1977 | US4059572 Mucopolysaccharide having flocculating activity of protein and method for producing the same |
| 11/15/1977 | US4058776 Bias circuit for avalanche diodes |
| 11/15/1977 | US4058775 Over-current prevention circuitry for transistor amplifiers |
| 11/08/1977 | US4057767 Device for protecting an audio amplifier against overload or short circuit |
| 11/08/1977 | US4057764 Amplifier |
| 11/08/1977 | US4057743 Current sensing circuit |
| 11/01/1977 | US4056810 Integrated injection logic memory circuit |
| 11/01/1977 | US4056787 Self-oscillating mixer circuit |
| 11/01/1977 | US4056786 Single ended class d amplifier |
| 11/01/1977 | US4056785 Low-noise microwave amplifier |
| 11/01/1977 | US4056784 Suppression of parametric oscillations in IMPATT amplifiers and oscillators |
| 11/01/1977 | US4056783 Linear sound amplifier circuit |
| 10/25/1977 | US4055812 Current subtractor |
| 10/25/1977 | US4055811 Transistor amplifiers |
| 10/25/1977 | US4055794 Base drive regulator |
| 10/25/1977 | US4055774 Current scaling apparatus |
| 10/18/1977 | US4054843 Amplifier with modulated power supply voltage |
| 10/11/1977 | US4053847 Self-feedback type low-noise charge sensitive amplifier |
| 09/27/1977 | US4051469 Charge-coupled amplifier |
| 09/27/1977 | US4051443 Differential amplifier |
| 09/27/1977 | US4051441 Transistor amplifiers |
| 09/27/1977 | US4051364 Photoparamp array multiplexer |
| 09/20/1977 | US4050086 Dynamic transducer biasing signal amplifying circuitry |
| 09/20/1977 | US4050032 Avalanche diode amplifier |
| 09/20/1977 | US4050031 Circuit and structure having high input impedance and DC return |