Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/172
Name: Amplifiers > Interstage coupling > Coupling from cathode
Description: Subject matter wherein the signal output is coupled form the cathode electrode of the preceding vacuum tube amplifier device of the two cascaded amplifying devices, to the input of the following amplifier device.


Sub-classes under this class:

Class Number Class Name Patents
330/173 D.c. coupling 0


Patents under this class:

Patent Number Title Of Patent Date Issued
5680074 Tube amplifier having specific configuration with four tubes Oct. 21, 1997



 
 
  Recently Added Patents
Managing devices and messages for users during a messaging session
Method, system and apparatus using a sensory cue to indicate subsequent action characteristics for data communications
Colored fine particle dispersion and a water-based ink for an ink-jet system
Method of delivering genes to the central nervous system of a mammal
Method for the accelerated acquisition of satellite signals
Activity monitoring
Recovery of alcohols from Fischer-Tropsch naphtha and distillate fuels containing the same
  Randomly Featured Patents
1-(1h-1,2,4-triazole-yl)-2-propanol compounds
Generic user authentication for network computers
Load-transfer system
Refiner
Video tape recorder or the like
Miniature semiconductor device for surface mounting
Heel shim and lifter for ski mountaineering
Fuel injector utilizing a multiple current level solenoid
Telephone service payment system using a sound emitting token
Surgical instruments and procedures for stabilizing a localized portion of a beating heart