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
Image erasing apparatus and recording medium conveying method for image erasing apparatus
Methods of prognosing a rheumatoid arthritis remission phenotype
Bull stationery tab
Carrying case
Mirac proteins
Method and system of extending battery life of a wireless microphone unit
  Randomly Featured Patents
Filter rod manufacture
Finger ring with means for locking behind the knuckle
Camera boosting circuit
Gas sensor
Integrated information communication system
Self-latching antenna field coupler
White level stabilization for tri-level imaging
HIV protease inhibitor compounds
Bioabsorbable marker having radiopaque constituents
Hydrogen-based ecosystem