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Class Information
Number: 330/128
Name: Amplifiers > With control of power supply or bias voltage > Control means for anode of screen grid circuit
Description: Subject matter wherein the "combined control means" is in the circuit from the power supply or bias voltage source means to the anode or screen grid electrode of a vacuum tube amplifying device or in shunt therewith, in such manner, as to control the power supply or bias voltage applied to the anode or screen grid electrode.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6961553 |
Bidirectional distributed amplifier |
Nov. 1, 2005 |
| 6947567 |
Audio boost circuit |
Sep. 20, 2005 |
| 6927626 |
Thermal protection system for an output stage of an amplifier |
Aug. 9, 2005 |
| 6489843 |
Power amplifier and communication unit |
Dec. 3, 2002 |
| 5909145 |
Variable control of electronic power supplies |
Jun. 1, 1999 |
| 5635872 |
Variable control of electronic power supplies |
Jun. 3, 1997 |
| 5091700 |
Amplifier with mains voltage reduction |
Feb. 25, 1992 |
| 4442407 |
Two loop automatic level control for power amplifier |
Apr. 10, 1984 |
| 4441086 |
Audio system with orderly shutdown sequence |
Apr. 3, 1984 |
| 4286492 |
Control for electronic amplifiers |
Sep. 1, 1981 |
| 4277755 |
Circuit arrangement for driving nonlinear threshold devices |
Jul. 7, 1981 |
| 4196392 |
Method and apparatus for monitoring and controlling the anode dissipation of transmitters |
Apr. 1, 1980 |
| 4053848 |
Circuit arrangement for combining high frequency power components |
Oct. 11, 1977 |
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