A circuit tester is used to check whether a transistor which has previously been performing properly in a circuit is still operational.
22.
Seriously, though, it's a good idea to have a circuit tester handy to be sure no electricity is flowing through the wires you're manipulating.
23.
Next use a neon circuit tester to make sure that you've tripped the correct breaker and that the circuit is cold ( without power ).
24.
To make the safety check, touch one probe of the circuit tester to the bare black wires and the other probe to the bare white wires.
25.
The MRUD comes packed in a grey / green colored canvas shoulder bag which also contains the firing cable a circuit tester and a manual inductor.
26.
I'm leery around live electrical wires, but the flickering light under the kitchen ceiling fan means I'll be working with circuit breakers and a circuit tester soon.
27.
If the circuit tester does not light, there is a problem with the primary circuit; shut off the power at the service panel and consult a licensed electrician.
28.
Unscrew the solderless connectors, being careful not to touch the bare wires, then probe the wires with a circuit tester to make sure the power is indeed off.
29.
While in-circuit testers are typically limited to testing the above devices, it is possible to add additional hardware to the test fixture to allow different solutions to be implemented.
30.
For extra safety, use a circuit tester, basically a light bulb with two wire probes that you can get at a hardware store, and test all wires before you touch them.
