The Compactron is a 12-pin In electronics, a vacuum tube (American English) or (thermionic) valve (British English) is a device generally used to amplify a signal. Once used in most electronic devices, vacuum tubes are now used only in specialized applications. For most purposes, the vacuum tube has been replaced by the much smaller and... vacuum tube family introduced in 1961 (As MAD Magazine pointed out on its first cover for the year) was the first upside-down year - i.e., one that looked the same upside down - since 1881, and the last until 6009. Events January January 1 - The farthing coin, used since the 13th century, ceases to be... 1961 by The General Electric Company, or GE, (NYSE: GE) is a multinational technology and services company. As of 2005 it was the worlds largest corporation in terms of market cap ([1]). It should not be confused with The General Electric Company plc, which was renamed Marconi plc in 1999. In... General Electric in Owensboro is the county seat of Daviess County, Kentucky, located on U.S. Highway 60 about 30 miles southeast of Evansville, Indiana. As of the 2000 census, the city had a total population of 54,067. Owensboro considers itself the BBQ Capital of the world; it holds its BBQ festival... Owensboro, Kentucky with the express purpose of keeping tubes in the market for a few more years during the In physics, the solid state is one of the three phases of matter (solid, liquid, and gas). See also: solid state physics. In electronics, solid state circuits are those that do not contain vacuum tubes. The term was introduced to describe the transition from valve-based amplifiers to transistorised amplifiers... solid state revolution. See TV (disambiguation) for other uses and Television (band) for the rock band Family watching television in the 1950s. Television is a telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The term has come to refer to all the aspects of television programming and transmission... Television sets were a primary application. Most Compactrons are either multiple tubes (e.g. three triodes in one bulb), or high- In the physical sciences, potential difference is the difference in potential between two points in a conservative vector field. In engineering, it is sometimes described as the across variable, where flux is the through variable. Production The product of the flux and the potential difference is the power, which is... voltage and high-power types such as television sweep tubes.

A distinguishing feature of most Compactrons is the placement of the seal-off 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 Events and trends Technology Explosive growth of the Internet; decrease in the cost of computers and other technology Reduction in size and cost of mobile phones leads to a massive surge in their popularity Year 2000 problem (commonly known as Y2K) Microsoft Windows operating system becomes virtually ubiquitous on IBM... 1990s.

12AE10, a Compactron dual pentode vacuum tube (photo by John Rehwinkel) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. This applies worldwide. File history Legend: (cur) = this is the current file, (del) = delete this old...

12AE10, a Compactron dual pentode vacuum tube (photo by John Rehwinkel) This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. This applies worldwide. File history Legend: (cur) = this is the current file, (del) = delete this old...

12AE10 Compactron tube (a dual pentode), made by GE

Examples:

• 6AG11 high- Mu or MU may refer to: mu (lowercase μ, uppercase Μ), a letter in the Greek alphabet Mu, a hypothetical lost continent in the Pacific Ocean mu (無), a Japanese word important in Zen mu (亩), Chinese unit of measurement equal to 666.7 square metres the IATA code for... mu twin triode
• 6M11 twin triode - pentode
• 12AE10 twin pentode
• 8B10 twin triode - twin diode
• 38HK7 pentode diode
• 6AF11
• 6GB5 beam power pentode with anode cap