Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Resist underlayer film forming composition for lithography, containing aromatic fused ring-containing resin
Method and system for physical verification using network segment current
Topical antibiotic composition for the prevention of Lyme disease
Push to release cover for a portable electronic device
Aqueous composition with agents to inhibit water evaporation
Processing circuitry for use with a position sensor
Interactivity model for shared feedback on mobile devices
  Randomly Featured Patents
System and method for consumer-selected advertising and branding in interactive media
Implementing simultaneous calls in a telecommunications network
Cutting device for crested cutting of fruits and the like
Methods, apparatus, and program products to close interaction loops for social tv
Apparatus for burning spirit or similar liquid fuels
Method and apparatus for processing glass
Reflecting color polarized light filter with color filter having polarized light function and liquid crystal display device
Convertible rowing exercising apparatus
Care or make-up composition containing fibers and a hydrophilic polyoganosiloxane
Actuator assembly for servo-controlled magnetic tape head