Continuity checker.

[Dave Lehnert]

I Have a continuity checker like the one in the photo below. Nothing fancy, very basic. $3 at the big box store.
Anyone know of one sold like it that also has a tone/ buzzer?


I have a Multimeter with tone but it takes up too much space on my bench when building cables.

[Lee Schierer]

Here is a home made one. Buzzer continuity tester

[Tom Stenzel]

Another way: Take the brass key off of your Morse Code practice Oscillator and put test leads on it.
Huh, what, doesn't everyone have a Heathkit HD-1416-B sitting on a shelf? What a world, what a world.

How about using something like a Radio Shack piezioelectic buzzer (less than $5) taped to a battery? Add wire and test probes as needed. If it takes up valuable workbench space attach it to a riser. And put it in a nice wood box.



-Tom

[Marty Gulseth]

wow, Tom! Someone else here who remembers Heathkits!

Regards, Marty

[Jim Koepke]

wow, Tom! Someone else here who remembers Heathkits!

Regards, Marty

We are not all young uns. My oldest brother built his own CW transmitter from a kit back in the 1950s.

Dave, what you may be looking for is a product from Mallory called a Sonalert.

http://www.google.com/search?q=sonal...TF-8&oq=&gs_l=

I had a large one with a few old AA batteries taped to the outside that I used for years working on electronics. I used it because it was free to me and the batteries were too weak for the flashlight they were in. I have some of the smaller ones around someplace, but it looks like they may be cheap enough and you may be able to source them inexpensively locally.

jtk

[David G Baker]

I still have a few somewhere that I haven't used for a while. I loved building their kits when I was much younger. I probably still have the HD-1416-B sitting around as well along with the code training course along with the audio tapes that came with it. Ah, the good old days.

[Tom Stenzel]

If you decide to build it and go the Radio Shack route search their website for "buzzer". They have several of the piezo type buzzers for less than $5. The Mallory Sonalets are the same type of noisemaker but cost more, are better constructed and have a ridiculous life of 50,000 hours or something like that. I installed several Sonalerts at work for alarm systems and as far as I know none failed in 20+ years.

Places to find them: Computer motherboards but might not be loud enough, microwave ovens, kids toys that have to make a beep now and then,

I have one but the frequency goes up and down like a police siren. If it were a steady tone I'd drop it in the mail. This thread made me go out in the garage and dig through my Junque Pyle.

-Tom

[Dave Lehnert]

Thanks for all the tips so far.

[Jonathan Martell]

Here's one someone built. Complete with pictures.

http://www.jestineyong.com/continuity-tester/

I didn't see any commercially available ones out there, as most people have a meter these days.

[Matt Meiser]

Better hurry if you want to buy something at Radio Shack. I've been in 2 different malls since Christmas and in both the Radio Shack was having a "Clearance" sale on EVERYTHING in the store, not that there was much left. They were using the same signs the liquidators always use.