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What Does arc valves Mean?

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To take care of the valve within the non-conducting condition, a negative bias of some volts or tens of volts is placed on the grid. Because of this, electrons emitted with the cathode are repelled far from the grid, back again to the cathode, and so are prevented from achieving http://valvesandfittings61288.mpeblog.com/12293860/the-best-side-of-arc-valves

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