Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/64
Name: Amplifiers > With space charge grid tube
Description: Subject matter wherein the amplifying device is of the vacuum tube type having a positively charged grid (with respect to the cathode) immediately adjacent the cathode, which neutralizes the negative space charge of the electrons emitted from the cathode so that a "virtual cathode" is produced on the side of the space charge grid on which the anode is situated, said tube having a normally negatively biased control grid next to the space charge grid, to which the signal is coupled, and an anode to receive the electrons emitted by the cathode, and which may have additional electrodes between the control grid and the anode.

Patents under this class:

Patent Number Title Of Patent Date Issued
6424219 Operational amplifier Jul. 23, 2002

  Recently Added Patents
Apparatus and method for controlling a tunable matching network in a wireless network
Negative electrode material for non-aqueous electrolyte secondary battery, method for manufacturing negative electrode material for non-aqueous electrolyte secondary battery, non-aqueous elect
Memory system with data line switching scheme
5-phenyl-pentanoic acid derivatives as matrix metalloproteinase inhibitors for the treatment of asthma and other diseases
Multiple RF band operation in mobile devices
Lid for a container
Liquid composite compositions using non-volatile liquids and nanoparticles and uses thereof
  Randomly Featured Patents
Magnetic position detectors
Aqueous fluid purification monitoring and control system and process
Flat seam construction
Assigning and managing patron reservations for distributed services using wireless personal communication devices
Method, apparatus and computer program products to simulate the display of objects in three dimensions
Thin disk acoustic baffle system
Optically corrected swimming goggles
Anti-human IGM immunoadsorbent and process for producing said immunoadsorbent
Video control circuit for multimedia applications with video signal synchronizer memory