Resources Contact Us Home
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 2

Patents under this class:

Patent Number Title Of Patent Date Issued
8315290 UWB multi-burst transmit driver for averaging receivers Nov. 20, 2012
8160118 UWB dual burst transmit driver Apr. 17, 2012
5680074 Tube amplifier having specific configuration with four tubes Oct. 21, 1997

  Recently Added Patents
Display apparatus and control method thereof
Second order correction circuit and method for bandgap voltage reference
Optical switching device and communications system
Doherty amplifier circuit
Aluminum oxide coated cutting tool and method of manufacturing thereof
Front face of a vehicle wheel
Image reading apparatus, image reading method and program
  Randomly Featured Patents
Positive engagement clutch for a submersible cleaning device
Battery pack, charger and terminal block arrangements for cordless power tool system
Dual rotating stretch wrapping apparatus and process
Molding device for forming a liner inside of a closure shell
Method and apparatus for detecting heart sounds
Hydrogen generator, fuel cell system comprising the same, and operation method thereof
Instantaneous breakless clock switching apparatus
Nucleic acid primers and probes for detecting tumor cells
Combined host and imaging device menu interface
Process for identifying existence of single nucleotide polymorphism without DNA sequencing