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Penta Laboratories was founded in 1951, and quickly achieved industry-wide recognition for the development of the beam-power Pentode vacuum tube. In 1973 the firm was acquired by The Raytheon Corporation, and has ultimately become a wholly owned subsidiary of Penta Financial, Inc.

Today, Penta Laboratories is a world class manufacturer and distributor of a wide range of electron tubes, especially vacuum tubes. Our product line covers broadcast, industrial, research, military, medical, scientific, and high end audio applications. We have over 8,000 stocking part numbers and an inventory far in excess of a million vacuum tubes. The firm is especially well positioned in the manufacturing of ceramic/metal vacuum tubes, triodes and tetrodes - a Penta specialty. Because of exceptionally high volumes in these key lines, Penta is uniquely positioned to support them with very competitive pricing.

Penta's facility is ISO 9001:2008 Certified. Our ultra-efficient state-or-the-art manufacturing operations and quality control procedures include testing to Mil Standard 1311B. In addition to its U.S. headquarters, Penta has affiliated manufacturing entities in Europe and Asia.

The company maintains an aggressive program of product development and is positioned at the cutting edge of vacuum tube technology. By the same token, Penta Laboratories maintains an extensive inventory of replacement vacuum tubes for equipment that dates back 75 years or more. To be sure, the design, manufacturing and testing of products are very important. However, Penta's commitment to excellence continues all the way through shipping and distribution stages. Penta's stringent packaging standards ensure ample protection of the product, and the firm's ability to respond quickly to orders assures the highest possible degree of customer service. Penta is uniquely positioned as a company with the necessary resources to handle large volumes, yet is small enough to care about every order.

Penta's customers are, after all, the most important element in the equation. It is customer satisfaction that Penta Laboratories values as the foundation of its entire business.

 




Some of our vacuum tubes.


Storehouse of vacuum tubes, capacitors, magnetrons and CRT.


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