Resources Contact Us Home
R.F. switched amplifier and A.M. modulator

Image Number 2 for United States Patent #4350962.

An amplifier circuit incorporating a valve or vacuum tube in the grounded grid configuration is disclosed. The anode D.C. potential is greater than the cathode D.C. potential which is in turn greater than the grid D.C. potential. The cathode is switched at an R.F. rate to a further D.C. potential below that of the grid. Preferably the grid potential substantially cuts off cathode current flow with the switch open. The amplifier finds particular application as an output amplifier in an A.M. R.F. transmitter with the modulation being provided by high level anode modulation. The tube or valve can be a triode, tetrode, or pentode.

  Recently Added Patents
Hepatitis C virus inhibitors
Compositions and methods for producing isoprene
Delta-sigma AD converter circuit and battery pack
Anomalous data detection method
Method and system for checking citations
Cardiopulmonary resuscitation monitoring apparatus
Digital camera supporting intelligent self-timer mode and method of controlling the same
  Randomly Featured Patents
Sheet material carrying device
Thermally engaged centrifugal clutch
Multi-layer sheet for use in electro-optic displays
Generation of clock signal from received packet stream
Method and system for in-place interaction with contained objects
CVT transient filter
Pressure compensator device for proportional type hydraulic distributor and hydraulic distributor incorporating same
High throughput protein production screening