A HIGH REGULATION ION GAUGE POWER SUPPLY,
WESTINGHOUSE RESEARCH LABS PITTSBURGH PA
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A dc filament emission regulator for the Bayard-Alpert ion gage is described. The regulator regulates the electron emission current against system pressure changes and powers the filament with highly regulated and filtered dc in order not to induce spurious ac signals at the ion collector which would mask the small ion current changes. The circuit diagram is given.