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HEWLETT-PACKARD

JOURNAL
T E C H N I C A L I N F O R M A T I O N F R O M T H E - h p - L A B O R A T O R I E S
Vol. 13, No. 6

UBLISHED BY THE HEWLETT-PACKARD COMPANY, 1501 PAGE MILL ROAD, PALO ALTO, CALIFORNIA FEBRUARY, 1962

A New Digital Voltmeter
Having High Rejection of Hum and Noise
TLJlGH accuracy in a digital voltmeter is of Substantial rejection of single-ended or super
little practical value unless that accuracy imposed noise is also achieved. These charac
can be maintained under the conditions of teristics are obtained through a new approach
everyday use. In particular, if the voltmeter to digital voltmeter design