Definitions for pentode
pen·tode

Princeton's WordNetRate this definition:0.0 / 0 votes

1. pentodenoun

   a thermionic tube having five electrodes

WiktionaryRate this definition:0.0 / 0 votes

1. pentodenoun

   a thermionic valve similar to a tetrode with the addition of a suppressor grid; was used in high quality audio and radio products

WikipediaRate this definition:0.0 / 0 votes

1. Pentode

   A pentode is an electronic device having five electrodes. The term most commonly applies to a three-grid amplifying vacuum tube or thermionic valve that was invented by Gilles Holst and Bernhard D.H. Tellegen in 1926. The pentode (called a triple-grid amplifier in some literature) was developed from the screen-grid tube or shield-grid tube (a type of tetrode tube) by the addition of a grid between the screen grid and the plate. The screen-grid tube was limited in performance as an amplifier due to secondary emission of electrons from the plate. The additional grid is called the suppressor grid. The suppressor grid is usually operated at or near the potential of the cathode and prevents secondary emission electrons from the plate from reaching the screen grid. The addition of the suppressor grid permits much greater output signal amplitude to be obtained from the plate of the pentode in amplifier operation than from the plate of the screen-grid tube at the same plate supply voltage. Pentodes were widely manufactured and used in electronic equipment until the 1960s to 1970s, during which time transistors replaced tubes in new designs. During the first quarter of the 21st century, a few pentode tubes have been in production for high power radio frequency applications, musical instrument amplifiers (especially guitars), home audio and niche markets.

ChatGPTRate this definition:0.0 / 0 votes

1. pentode

   A pentode is a type of vacuum tube or electron tube that has five active elements or electrodes, typically including a cathode, a control grid, a screen grid, a suppressor grid and an anode or plate. The presence of these five components allows the pentode to function as an electronic amplifier and switch, which makes it a crucial component in a variety of electronic devices. These applications can range from television sets and radios to musical amplifiers and computing devices. The pentode was created as an improvement over the triode and tetrode vacuum tubes, featuring improved stability and performance capabilities.

WikidataRate this definition:0.0 / 0 votes

1. Pentode

   A pentode is an electronic device having five active electrodes. The term most commonly applies to a three-grid vacuum tube, which was invented by the Dutchman Bernhard D.H. Tellegen in 1926. Pentodes are closely related to beam tetrodes, and an improvement over conventional tetrodes, which were themselves a development of triodes.

Matched Categories

1. • Tube

How to pronounce pentode?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say pentode in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of pentode in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of pentode in Pythagorean Numerology is: 7

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=pentode
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Pentode
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Pentode
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=pentode