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cold fill

A cold cathode is a cathode that is not electrically heated by a filament. A cathode may be considered "cold" if it emits more electrons than can be supplied by thermionic emission alone. It is used in gas-discharge lamps, such as neon lamps, discharge tubes, and some types of vacuum tube. The other type of cathode is a hot cathode, which is heated by electric current passing through a filament. A cold cathode does not necessarily operate at a low temperature: it is often heated to its operating temperature by other methods, such as the current passing from the cathode into the gas.

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  1. C

    Washing machine -cold fill.

    Hi, I'm attempting to install a washing machine for the first time ... am I right in thinking the cold only fill hose attaches above the little blue lever? - I just undo that brass cap? Thanks for any advice.
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