Compactron

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12AE10 Compactron tube (a dual pentode), made by GE
The Compactron is a 12-pin vacuum tube family introduced in 1961 by General Electric in Owensboro, Kentucky with the express purpose of keeping tubes in the market for a few more years during the solid state revolution. Television sets were a primary application. Most Compactrons are either multiple tubes (e.g. three triodes in one bulb), or high-voltage and high-power types such as television sweep tubes.

A distinguishing feature of most Compactrons is the placement of the evacuation tip on the bottom end, rather than the top end as was customary with "miniature" tubes. Variations of the Compactron design were made by Sylvania and by some Japanese firms. Manufacture of Compactrons ceased in the early 1990s.

Examples:
  • 6AG11 high-mu twin triode
  • 6M11 twin triode - pentode
  • 12AE10 twin pentode
  • 8B10 twin triode - twin diode
  • 38HK7 pentode diode
  • 6K11 triple triode
  • 6LF6 beam power tetrode with anode cap
vacuum tube, electron tube (inside North America), thermionic valve, or just valve (elsewhere); is a device used to amplify, switch, otherwise modify, or create an electrical signal by controlling the movement of electrons in a low-pressure space, often not
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19th century - 20th century - 21st century
1930s  1940s  1950s  - 1960s -  1970s  1980s  1990s
1958 1959 1960 - 1961 - 1962 1963 1964

Year 1961 (MCMLXI
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General Electric Co.

Public (NYSE:  GE )
Founded 1878 in Menlo Park, New Jersey
Founder Thomas Alva Edison
Headquarters Fairfield, Connecticut,[1] USA

Key people Jeff Immelt, Chairman & CEO
Keith Sherin, Vice Chairman, CFO
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Owensboro
Nickname: BBQ Capital of the world
Location of Owensboro within Kentucky.
Coordinates:
Country United States
State Kentucky
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The term solid state was introduced in the 1960s to describe electronic devices whose circuits contained neither vacuum tubes nor mechanical devices such as relays, as transistors replaced vacuum tubes in most consumer electronics.
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Television (often abbreviated to TV, T.V., or more recently, tv; sometimes called telly, the tube, boob tube, or idiot box in British English) is a widely used telecommunication system for broadcasting and receiving moving pictures
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A triode is an electronic device having three active electrodes. The term most commonly applies to a vacuum tube (or valve in British English) with three elements: the filament or cathode, the grid, and the plate or anode.
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Voltage (sometimes also called electric potential difference or electrical tension) is the potential similarity of electrical potential between two points of an electrical or electronic circuit, expressed in volts.
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The Evacuation tip is a port on a vacuum tube used to evacuate gasses from the tube before being sealed. It provides a convenient port for the amateur glasshacker to introduce gasses to alter the performance of the valve.
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Sylvania literally means "forest land" in Latin. It is used to mean several different things:

Companies

  • Osram Sylvania, North American lighting company started in Emporium, Pennsylvania in 1924

Places

Canada


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Centuries: 19th century - 20th century - 21st century

1960s 1970s 1980s - 1990s - 2000s 2010s 2020s
1990 1991 1992 1993 1994
1995 1996 1997 1998 1999

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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.
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diode is a component that restricts the directional flow of charge carriers. Essentially, a diode allows an electric current to flow in one direction, but blocks it in the opposite direction. Thus, the diode can be thought of as an electronic version of a check valve.
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