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“electronic voltmeter”
electronic voltmeter, vacuum-tube voltmeter
1. The voltmeter whose sensitivity is increased by amplification.
2. A voltmeter that uses the rectifying and amplifying properties of electron devices and their associated circuits to secure desired characteristics; such as, high-input impedance, wide-frequency range, crest indications, peak-to-peak indications, and so on.
2. A voltmeter that uses the rectifying and amplifying properties of electron devices and their associated circuits to secure desired characteristics; such as, high-input impedance, wide-frequency range, crest indications, peak-to-peak indications, and so on.
It is called a "vacuum-tube voltmeter" when its electron devices are vacuum tubes.
This entry is located in the following unit:
electro-, electr-, electri-
(page 70)