pool-cathode mercury-arc rectifier

pool-cathode mercury-arc rectifier

[′pül ‚kath‚ōd ′mər·kyə·rē ¦ärk ′rek·tə‚fī·ər]
(electronics)
A pool tube connected in an electric circuit; its rectifying properties result from the fact that only the mercury-pool cathode, and not the anode, can emit electrons. Also known as mercury-pool rectifier.
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