with tubes only

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H03F3/22

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Parent Industries

HELECTRICITY H03Electronic circuits H03FAMPLIFIERS H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Current Industry

H03F3/22with tubes only

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Programmable analog beamformer
- Patent number 11,677,146
- Issue date Jun 13, 2023
- Navid Gougol
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Broadband high power amplifier
- Patent number 11,456,702
- Issue date Sep 27, 2022
- Rohde & Schwarz GmbH & Co. KG
- Thomas Witt
- G01 - MEASURING TESTING
Information Patent Grant
Method for producing an amplification stage for a variable envelope...
- Patent number 10,826,444
- Issue date Nov 3, 2020
- Centre National d'Etudes Spatiales C N E S
- Geoffroy Soubercaze-Pun
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier output stage using toroidal transformer
- Patent number 10,707,816
- Issue date Jul 7, 2020
- REAL ANALOG, LLC
- Rudolph J. Liedtke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power tube connection structure of power amplifier and power amplifier
- Patent number 10,426,036
- Issue date Sep 24, 2019
- Huawei Technologies Co., Ltd.
- Songlin Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Amplifier output stage using toroidal transformer
- Patent number 10,320,343
- Issue date Jun 11, 2019
- REAL ANALOG, LLC
- Rudolph J. Liedtke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Audio output circuit and audio device
- Patent number 10,224,889
- Issue date Mar 5, 2019
- Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Wendong Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power tube connection structure of power amplifier and power amplifier
- Patent number 10,165,687
- Issue date Dec 25, 2018
- Huawei Technologies Co., Ltd.
- Songlin Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Feedback compensated master volume control
- Patent number 10,153,745
- Issue date Dec 11, 2018
- John Gary Tomaszewicz
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Incremental wattage reduction in a vacuum tube amplifier
- Patent number 9,917,560
- Issue date Mar 13, 2018
- Mesa/Boogie Ltd.
- Randall Smith
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tube amplifier assembly having a power tube and a capacitor assembly
- Patent number 9,912,308
- Issue date Mar 6, 2018
- General Electric Company
- Andreas Bäcklund
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Coupling assembly and radiofrequency amplification system having th...
- Patent number 9,859,851
- Issue date Jan 2, 2018
- General Electric Company
- Andreas Bäcklund
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Doherty power amplifier
- Patent number 9,800,209
- Issue date Oct 24, 2017
- XI'AN ZHONGXING NEW SOFTWARE CO. LTD
- Chao Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Vacuum tube high fidelity headphone
- Patent number 9,685,917
- Issue date Jun 20, 2017
- WATA Electronics Co., LTD
- Tack Ching Wun
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tunable tube amplifier system of a radio-frequency power generator
- Patent number 9,515,616
- Issue date Dec 6, 2016
- General Electric Company
- Andreas Bäcklund
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tube amplifier assembly having a power tube and a capacitor assembly
- Patent number 9,455,674
- Issue date Sep 27, 2016
- General Electric Company
- Andreas Bäcklund
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Methods and apparatus for relatively invariant input-output spectra...
- Patent number 9,431,970
- Issue date Aug 30, 2016
- Nace Engineering, Inc.
- Arthur E. Nace
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for operating an amplifier module of a satellite
- Patent number 9,178,475
- Issue date Nov 3, 2015
- Tesat-Spacecom GmbH & Co. KG
- Gerhard Reinwald
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifiers with improved isolation
- Patent number 8,975,968
- Issue date Mar 10, 2015
- QUALCOMM Incorporated
- Sherif Abdelhalem
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for adjusting the maximum output power of a valve power ampl...
- Patent number 8,705,772
- Issue date Apr 22, 2014
- Parsek S.r.l.
- Marco De Virgiliis
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Controlling the performance of a thermionic tube
- Patent number 7,936,211
- Issue date May 3, 2011
- KBO Dynamics International Limited
- Colin Arrowsmith
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Output circuit of vacuum-tube amplifier
- Patent number 7,355,475
- Issue date Apr 8, 2008
- AVERD Labs Co., Ltd.
- Soung Whan Chung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Balanced amplifier
- Patent number 7,304,535
- Issue date Dec 4, 2007
- Chi Ming John Lam
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Vacuum tube power amplifier switchable between push-pull and single...
- Patent number 7,173,488
- Issue date Feb 6, 2007
- Mesa Boogie
- Randall C. Smith
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Methods and apparatus for variable harmonic distortion
- Patent number 7,145,392
- Issue date Dec 5, 2006
- Peavey Electronics Corporation
- Hartley D. Peavey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Microchannel plate audio amplifier
- Patent number 6,895,096
- Issue date May 17, 2005
- John P. DeLuca
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Sound production apparatus
- Patent number 6,111,968
- Issue date Aug 29, 2000
- Gibson Guitar Corp.
- John T. Riboloff
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Cathode-follower high-fidelity power amplifier
- Patent number 5,859,565
- Issue date Jan 12, 1999
- Martin Reiffin
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transformer-coupled amplifier
- Patent number 5,838,196
- Issue date Nov 17, 1998
- Yoshiki Industrial Co., Ltd.
- Yasuo Yoshizawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier with mains voltage reduction
- Patent number 5,091,700
- Issue date Feb 25, 1992
- Randall C. Smith
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
PROGRAMMABLE ANALOG BEAMFORMER
- Publication number 20210336336
- Publication date Oct 28, 2021
- Navid Gougol
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BROADBAND HIGH POWER AMPLIFIER
- Publication number 20200036334
- Publication date Jan 30, 2020
- Rohde& Schwarz GmbH & Co. KG
- Thomas Witt
- G01 - MEASURING TESTING
Information Patent Application
AMPLIFIER OUTPUT STAGE USING TOROIDAL TRANSFORMER
- Publication number 20190280657
- Publication date Sep 12, 2019
- REAL ANALOG, LLC
- Rudolph J. LIEDTKE
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
POWER TUBE CONNECTION STRUCTURE OF POWER AMPLIFIER AND POWER AMPLIFIER
- Publication number 20190223293
- Publication date Jul 18, 2019
- Huawei Technologies Co., Ltd
- Songlin LI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD FOR PRODUCING AN AMPLIFICATION STAGE FOR A VARIABLE ENVELOPE...
- Publication number 20180316320
- Publication date Nov 1, 2018
- CENTRE NATIONAL D'ETUDES SPATIALES C N E S
- Geoffroy SOUBERCAZE-PUN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AUDIO OUTPUT CIRCUIT AND AUDIO DEVICE
- Publication number 20180294787
- Publication date Oct 11, 2018
- Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Wendong LI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
POWER TUBE CONNECTION STRUCTURE OF POWER AMPLIFIER AND POWER AMPLIFIER
- Publication number 20170347457
- Publication date Nov 30, 2017
- Huawei Technologies Co., Ltd
- Songlin LI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
COUPLING ASSEMBLY AND RADIOFREQUENCY AMPLIFICATION SYSTEM HAVING TH...
- Publication number 20170111016
- Publication date Apr 20, 2017
- GENERAL ELECTRIC COMPANY
- Andreas Bäcklund
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TUBE AMPLIFIER ASSEMBLY HAVING A POWER TUBE AND A CAPACITOR ASSEMBLY
- Publication number 20160359462
- Publication date Dec 8, 2016
- GENERAL ELECTRIC COMPANY
- Andreas Bäcklund
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TUNABLE TUBE AMPLIFIER SYSTEM OF A RADIO-FREQUENCY POWER GENERATOR
- Publication number 20160181994
- Publication date Jun 23, 2016
- GENERAL ELECTRIC COMPANY
- Andreas Baecklund
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TUBE AMPLIFIER ASSEMBLY HAVING A POWER TUBE AND A CAPACITOR ASSEMBLY
- Publication number 20160181996
- Publication date Jun 23, 2016
- GENERAL ELECTRIC COMPANY
- Andreas Baecklund
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Doherty power amplifier
- Publication number 20160164473
- Publication date Jun 9, 2016
- ZTE CORPORATION
- Chao Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method for Operating an Amplifier Module of a Satellite
- Publication number 20140253231
- Publication date Sep 11, 2014
- TESAT SPACECOM GMBH & CO. KG
- Gerhard REINWALD
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AMPLIFIERS WITH IMPROVED ISOLATION
- Publication number 20140210554
- Publication date Jul 31, 2014
- QUALCOMM Incorporated
- Sherif Abdelhalem
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Power Amplifier Apparatus, and Receiving Apparatus of a User Equipment
- Publication number 20120212295
- Publication date Aug 23, 2012
- HUAWEI DEVICE CO., LTD.
- Hai Wang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method for adjusting the maximum output power of a valve power ampl...
- Publication number 20110311076
- Publication date Dec 22, 2011
- PARSEK S.r.l.
- Marco De Virgiliis
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Controlling the Performance of a Thermionic tube
- Publication number 20110199155
- Publication date Aug 18, 2011
- Colin Arowsmith
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Controlling the performance of a thermionic tube
- Publication number 20100033245
- Publication date Feb 11, 2010
- Colin Arrowsmith
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
OUTPUT CIRCUIT OF VACUUM-TUBE AMPLIFIER
- Publication number 20080042744
- Publication date Feb 21, 2008
- Soung Whan Chung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Balanced amplifier
- Publication number 20070164816
- Publication date Jul 19, 2007
- Chi Ming John Lam
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Methods and apparatus for variable harmonic distortion
- Publication number 20060012424
- Publication date Jan 19, 2006
- Hartley D. Peavey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Vacuum tube power amplifier switchable between push-pull and single...
- Publication number 20060012423
- Publication date Jan 19, 2006
- Randall C. Smith
- H03 - BASIC ELECTRONIC CIRCUITRY

with tubes only

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Programmable analog beamformer

Broadband high power amplifier

Method for producing an amplification stage for a variable envelope...

Amplifier output stage using toroidal transformer

Power tube connection structure of power amplifier and power amplifier

Amplifier output stage using toroidal transformer

Audio output circuit and audio device

Power tube connection structure of power amplifier and power amplifier

Feedback compensated master volume control

Incremental wattage reduction in a vacuum tube amplifier

Tube amplifier assembly having a power tube and a capacitor assembly

Coupling assembly and radiofrequency amplification system having th...

Doherty power amplifier

Vacuum tube high fidelity headphone

Tunable tube amplifier system of a radio-frequency power generator

Tube amplifier assembly having a power tube and a capacitor assembly

Methods and apparatus for relatively invariant input-output spectra...

Method for operating an amplifier module of a satellite

Amplifiers with improved isolation

Method for adjusting the maximum output power of a valve power ampl...

Controlling the performance of a thermionic tube

Output circuit of vacuum-tube amplifier

Balanced amplifier

Vacuum tube power amplifier switchable between push-pull and single...

Methods and apparatus for variable harmonic distortion

Microchannel plate audio amplifier

Sound production apparatus

Cathode-follower high-fidelity power amplifier

Transformer-coupled amplifier

Amplifier with mains voltage reduction

Patents Applicationslast 30 patents

PROGRAMMABLE ANALOG BEAMFORMER

BROADBAND HIGH POWER AMPLIFIER

AMPLIFIER OUTPUT STAGE USING TOROIDAL TRANSFORMER

POWER TUBE CONNECTION STRUCTURE OF POWER AMPLIFIER AND POWER AMPLIFIER

METHOD FOR PRODUCING AN AMPLIFICATION STAGE FOR A VARIABLE ENVELOPE...

AUDIO OUTPUT CIRCUIT AND AUDIO DEVICE

POWER TUBE CONNECTION STRUCTURE OF POWER AMPLIFIER AND POWER AMPLIFIER

COUPLING ASSEMBLY AND RADIOFREQUENCY AMPLIFICATION SYSTEM HAVING TH...

TUBE AMPLIFIER ASSEMBLY HAVING A POWER TUBE AND A CAPACITOR ASSEMBLY

TUNABLE TUBE AMPLIFIER SYSTEM OF A RADIO-FREQUENCY POWER GENERATOR

TUBE AMPLIFIER ASSEMBLY HAVING A POWER TUBE AND A CAPACITOR ASSEMBLY

Doherty power amplifier

Method for Operating an Amplifier Module of a Satellite

AMPLIFIERS WITH IMPROVED ISOLATION

Power Amplifier Apparatus, and Receiving Apparatus of a User Equipment

Method for adjusting the maximum output power of a valve power ampl...

Controlling the Performance of a Thermionic tube

Controlling the performance of a thermionic tube

OUTPUT CIRCUIT OF VACUUM-TUBE AMPLIFIER

Balanced amplifier

Methods and apparatus for variable harmonic distortion

Vacuum tube power amplifier switchable between push-pull and single...