Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 330/142
Name: Amplifiers > With control of power supply or bias voltage > With control of input electrode or gain control electrode bias > Cathode resistor supplies bias (e.g., self-biasing circuits)
Description: Subject matter involving a vacuum tube amplifying device whose input electrode bias voltage and/or bias control voltage for the same amplifying device is supplied from a resistive circuit network in the cathode to ground path of the vacuum tube amplifying device whereby the plate current flowing through such resistor, which is usually by-passed for signal current frequencies, develops a D.C. bias voltage at the cathode.










Patents under this class:

Patent Number Title Of Patent Date Issued
7511573 Input/output signals preserver circuit of amplification circuits Mar. 31, 2009











 
 
  Recently Added Patents
Cable preparation tool
Electronic devices with voice command and contextual data processing capabilities
Power surface mount light emitting die package
Data security for dynamic random access memory using body bias to clear data at power-up
Method to calibrate RF paths of an FHOP adaptive base station
Systems and methods for advertising on content-screened web pages
Control of protein activity using a conducting polymer
  Randomly Featured Patents
Metal bearing surface having an adherent score-resistant coating
Microprocessor boot-up controller, nonvolatile memory controller, and information processing system
Stove having auxiliary damper operably connected to access door
Sealing arrangement for an extrusion apparatus
Polymerizing apparatus
Compiler driven mechanism for registration and deregistration of memory pages
Battery having electrolyte supply reservoir and activation tank disposed in a battery housing
Inner shell for vehicle bodies
Stretcher
Biologic information detecting apparatus