Main Page | See live article | Alphabetical index The Compactron is a 12-pin vacuum tube invented in the early 1960s 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 Compactrons is the placement of the seal-off tip on the bottom end, rather than the top end as was customary with "miniature" tubes. Examples: 6AG11 high-mu twin triode 6M11 twin triode - pentode 11AR11 twin pentode 8B10 twin triode - twin diode 38HK7 pentode diode 6AF11 6GB5 beam power pentode with anode cap This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.