Pentode transistor
Transistor with 5 active terminals

A pentode transistor is any transistor having five active terminals.
01Early pentode transistors
One early pentode transistor was developed in the early 1950s as an improvement over the point-contact transistor.
- A point-contact transistor having three emitters. It became obsolete in the middle 1950s.
Pentode field-effect transistors having 3 gates, similar to vacuum tube pentodes have also been described
02Modern pentode transistors
- Triple emitter transistor in three input transistor-transistor logic gates.
- Triple collector transistor in three output integrated injection logic gates.
- Field effect transistor having three gates.
Sources and credits
This article is adapted from the Wikipedia article “Pentode transistor”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Pentode transistor (vectorized, optimized SVG) 01.svg by Lawrence E. Dickens, CC0
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