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  2. Solenoid voltmeter - Wikipedia

    en.wikipedia.org/wiki/Solenoid_voltmeter

    When testing power supply circuits, a high-impedance connection (that is, a nearly open-circuit fault such as a burned switch contact or wire joint) in the power path might still allow enough voltage/current through to register on a high-impedance digital voltmeter, but it probably can't actuate the solenoid voltmeter. For use with high ...

  3. Battery tester - Wikipedia

    en.wikipedia.org/wiki/Battery_tester

    Battery tester. A battery tester is an electronic device intended for testing the state of an electric battery, going from a simple device for testing the charge actually present in the cells and/or its voltage output, to a more comprehensive testing of the battery's condition, namely its capacity for accumulating charge and any possible flaws affecting the battery's performance and security.

  4. Test probe - Wikipedia

    en.wikipedia.org/wiki/Test_probe

    A typical probe uses a 9 megohm series resistor shunted by a low-value capacitor to make an RC compensated divider with the cable capacitance and scope input. The RC time constants are adjusted to match. For example, the 9 megohm series resistor is shunted by a 12.2 pF capacitor for a time constant of 110 microseconds.

  5. CD V-700 - Wikipedia

    en.wikipedia.org/wiki/CD_V-700

    Victoreen CD V-700 overview. The CD V-700 (often written as "CDV-700") is a Geiger counter employing a probe equipped with a Geiger–Müller tube, manufactured by several companies under contract to United States federal civil defense agencies in the 1950s and 1960s.

  6. Test light - Wikipedia

    en.wikipedia.org/wiki/Test_light

    A test light, test lamp, voltage tester, or mains tester is a piece of electronic test equipment used to determine the presence of electricity in a piece of equipment under test. A test light is simpler and less costly than a measuring instrument such as a multimeter , and often suffices for checking for the presence of voltage on a conductor.

  7. U.S. auto safety regulator opens two new probes into ... - AOL

    www.aol.com/u-auto-safety-regulator-opens...

    The separate motive-power probe is in response to 15 notices submitted by Ford vehicle owners about remedies to a previous recall that may have failed to effectively address the issue, according ...

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