voltmeter

Found 3 Results for voltmeter.

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1. Variable-Frequency AC Power Supply
Adjustment of the audio-frequency oscillator to 50 Hz and of the volume control on the audio amplifier for 115-120V output (indicated on voltmeter V) creates the necessary power for foreign equipment.
http://www.fun-home-projects.com/electrical_projects/​tools/​variable_frequency_ac_power_supply.html

2. Go / No - Go Battery Checker
Low-voltage flashlight and transistor-radio batteries accumulate in the workshop and often the temptation is to discard them all rather than go through the time-consuming task of checking them with a voltmeter and then deciding which have sufficient life left to make keeping them worthwhile.
http://www.fun-home-projects.com/electrical_projects/​tools/​go_no_go_battery_checker.html

3. Dehumidifiers
 Connect a voltmeter to the "start" terminal of the relay and the "common" terminal of thermostat.
http://www.fun-home-projects.com/electrical_projects/​repairs/​dehumidifiers.html

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