Polarity Unveils TWT Power Supply

SACRAMENTO, Calif., March 11, 2009—Polarity Inc., an innovative power-supply manufacturer serving the defense, commercial, industrial, cleantech and medical industries, today unveiled a high-voltage, traveling wave tube (TWT) power supply for airborne, shipboard and ground-based amplifiers.

“With Polarity’s integrated electronic crowbar system, all our TWT system power supplies support one to four collectors,” said Wade Goins, president and CEO of Polarity. “This is yet another example of our commitment to providing high-reliability power systems proven to operate in mission-critical and harsh airborne or shipboard environments.”

Specifications include:

  • Input Voltage - 120VAC/208VAC +/-10%
  • PFC Module – optional (85V – 265V) DC and AC
  • Cathode Supply - 8KV to 18KV
  • Collector 1,2,3, and 4
  • Focused Electrode supply (optional grid supply)
  • Heater Supply 5 to 8VDC, 1 to 5A
  • Converter - 50kHZ to 200kHZ (option, external sync)
  • Cooling - Air cooling

Polarity's engineers have extensive experience working with military and government contractors requiring hands-on, engineer-to-engineer interaction to insure successful system integration and adherence to MTBF and MTTR design requirements. All Polarity products meet the military’s stringent design requirements for shock, vibration, temperature, altitude, humidity, salt fog and fungus.

About Polarity Inc.:
Polarity Inc. provides innovative power-supply solutions for the military, commercial, industrial, cleantech and medical industries. Founded in 1999, the company is renowned for pioneering technology advancements in efficiency, power density and industry-leading reliability across its line of products. Sacramento, Calif.-based Polarity holds a number of U.S. patents on power conversion and high-voltage modulator designs. For more information, please visit

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