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
Profile and template based dynamic portable user workflow
Low-staining room temperature curable coating composition
Methods and devices for multiple-mode radio frequency synthesizers
Semiconductor memory system having ECC circuit and controlling method thereof
Power or voltage oscillation damping in a power transmission system
Nitride semiconductor laser device
Plants and seeds of hybrid corn variety CH979678
  Randomly Featured Patents
Optically active aminoalcohol derivatives and method of producing same
Diagnostic test methods
Upper ring of laparoscopic port system
Method and circuit system for operating a solenoid valve
Active optical system for phase-shifting desired portions of an incoming optical wavefront
Pigments coated with ultraviolet radiation absorbent
Container chute for fast reception of nested containers
Apparatus and methods for generating error correction codes for use in an information recording device
Silicon nitride circuit substrate and semiconductor device containing same
Lens system and optical apparatus