Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/71
Name: Amplifiers > Anode energized through discharge path of controlled vacuum tube > Plural discharge paths traversed by anode supply
Description: Subject matter wherein power supply current for one or more vacuum tube amplifying devices is supplied through at least two separate space discharge paths of at least two vacuum tubes.

Sub-classes under this class:

Class Number Class Name Patents
330/72 Amplifier devices in arms of a bridge 1

Patents under this class:

Patent Number Title Of Patent Date Issued
7511571 Single-ended screen-regulated cathode-follower output stage for high-fidelity music amplifier Mar. 31, 2009
6265938 Linear high-voltage drive stage and cathode-follower high-fidelity power amplifier implementing same Jul. 24, 2001
5859565 Cathode-follower high-fidelity power amplifier Jan. 12, 1999
4324950 Amplifier for driving electrostatic loudspeakers Apr. 13, 1982

  Recently Added Patents
Liquid crystal display wherein the data lines covered by each pixel electrode are supplied with data signals of opposite polarities
Stand for food service
Cross-platform cloud-based map creation
Mirror elements for EUV lithography and production methods therefor
Apparatus for restoring setting information of a board management controller from a backup memory before loading an OS when a system board is replaced
Measurement and uses of oxidative status
Isoselective polymerization of epoxides
  Randomly Featured Patents
Gas sensors
Process scheduler employing ordering function to schedule threads running in multiple adaptive partitions
Method of manufacturing a semiconductor device including a dielectric film formed between first and second electrode layers
Four cycle, dual piston internal combustion engine and pump
Welding apparatus and shield therefor
Method for tying artificial fish egg lures and device thereof
Modified polycarbonates and a process for their preparation
Method and device for eliminating oxygen contained in aqueous monomer solutions
Methods of fabrication of a simulation lead