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-   -   continuity tester (http://www.diychatroom.com/f18/continuity-tester-33553/)

drewhart 12-10-2008 09:39 PM

continuity tester
 
should i buy one of these?

kbsparky 12-10-2008 10:58 PM

What do you want to do with it once purchased? :huh:

KE2KB 12-11-2008 06:53 AM

Most DMM's will perform simple continuity testing, and a lot of other things as well.

drewhart 12-11-2008 08:09 AM

i dont know what they do. i have a voltage detector, what can a ct do that a vt cant?

jerryh3 12-11-2008 08:14 AM

Quote:

Originally Posted by drewhart (Post 196672)
i dont know what they do. i have a voltage detector, what can a ct do that a vt cant?

It can test for continuity.
http://home.howstuffworks.com/continuity-tester.htm

KE2KB 12-11-2008 09:25 AM

When testing for continuity, you must be sure the circuit is NOT powered.

220/221 12-11-2008 12:09 PM

My favorite continuity tester is a home made one from radio shack.

9V battery, the thing a 9v battery clips into, with 2 leads, a small 9v piezo speaker and 2 alligator clips w/leads. Put it all together and tape the speaker to the battery with elec tape.

It is cheap, it has alligator clips and it is loud enough to hear from another room.

I usually make a batch for Christmas gifts. Thanks for reminding me.

Gigs 12-11-2008 12:14 PM

I think you mean piezo buzzer... if they try this with just a piezo speaker, nothing will happen.

220/221 12-11-2008 12:20 PM

OK....piezo buzzer then...but it doen't buzz, it emits a high pitched tone. It's about 1" in diameter....the smaller, the better

Yoyizit 12-11-2008 12:54 PM

Quote:

Originally Posted by drewhart (Post 196578)
should i buy one of these?

For household use, it is 120v in series with an incand. lamp (or in series with a radio, for audible indication).

Wildie 12-11-2008 01:59 PM

You can buy a combination continuity tester and tone generator at Home Depot. They come with a probe for picking up the tone.

The tester has a 3 way switch. In one position it sends out a tone. Center is off and the 3rd position is for continuity.

The idea is to find a cable using the tone and probe, then verify it by checking its continuity!

Mine cost less than $30 and I've been using for years.

220/221 12-11-2008 04:06 PM

http://i8.photobucket.com/albums/a8/...2/DSC02066.jpg


http://i8.photobucket.com/albums/a8/...2/DSC02067.jpg


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