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
Image forming apparatus
Managing deduplication density
Molecular sieve
Display apparatus having a semi-penetration layer and a sealing unit
Digital camera dock having movable guide pins
Radio link monitoring (RLM) and reference signal received power (RSRP) measurement for heterogeneous networks
Image processing device, printing apparatus, image processing method, and method of producing printing apparatus
  Randomly Featured Patents
Particulate defoaming compositions
Electronic devices including electrode walls with insulating layers thereon
Aqueous dispersions of epoxy resins
Search system, management server, mobile communication device, search method, and program
Methods of and apparatus for producing a stress-free laminate
Method and apparatus for sending private data instead of stuffing bits in an MPEG bit stream
Photographic camera system
Method for firing ceramic cores
Liquid cooled high-frequency filter