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A handy audio tester

post #1 of 11
Thread Starter 
Hey Guys,
I made an audio tester that I think some of you would find helpful when troubleshooting audio gear, especially when working with equipment in a rack. It is basically an amplifier and a 500 Hz tone generator. It runs on 4 AAA batteries and shuts itself off after 8 min. It allows you to test if audio is coming out of a piece of equipment as well as passing a signal through. I did some internet searches and I cant find anything like it. If it sounds like something you would be interested in or if you can tell me where you've seen a similar device, let me know. Thanks
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post #2 of 11
Thread Starter 
I thought I would get at least one person asking how much you want for one or maybe," I use this other thing when I'm troubleshooting" Maybe I posted in the wrong area.
post #3 of 11
There are lots of similar devices offered and many have several more features. Building one for yourself is a good idea as it saves money on functions you may not need that pro units offer. Congrats though on a good idea.
post #4 of 11
Thread Starter 
Can you give me a brand and model? As I stated initially, I haven't seen any similar devices. At least nothing under $100. Thanks
post #5 of 11
Let's see...

Ideal, Extech, Cables to Go, and Fluke, among several other manufacturers, sell kits that do just that and more for <$100. At Home Depot you can find one for <$40, and I love the one I picked up at Lowe's for $46.
post #6 of 11
Thread Starter 
I looked at the web sites for all of the manufacturers you mentioned and found nothing like what I've made. If you don't mind, could you give me a link to one of the items you've seen? Thanks
post #7 of 11
http://www.extech.com/instruments/pr...tid=2&prodid=9

They'll be under the cable tester / locators. All of these are "fox and hound" sets with a signal generator like you've described...

Jeff
post #8 of 11
Quote:
Originally Posted by Mikew-263 View Post

I looked at the web sites for all of the manufacturers you mentioned and found nothing like what I've made. If you don't mind, could you give me a link to one of the items you've seen? Thanks

They may not be exactly what you've made, but just clip the tone generator onto an RCA (or whatever) connector and you're off and running.
post #9 of 11
Thread Starter 
Those things are for finding and identifying wires, not for checking audio components. The signal from the tone generator is too hot to send directly into a power amplifier and the probe will sometimes pick up the audio from a tuner or cd, but it sound distorted which might be the problem that your testing for. I'm going to make a video of my product, and show you what I'm talking about.
post #10 of 11
Portable CD player or iPod with a 3.5mm-RCA adapter and a test disc. Or an iPhone and any number of audio test or tone generator apps (and a cable)... Sorry, just think there's a lot of DIY-grade solutions to this problem, and any pro would have serious tone/test equipment.

Jeff
post #11 of 11
Those tone generators put out about volt, which is line level. If you need mic level, a simple voltage divider, either homemade (2 resistors) or bought from Rat Shack would do what you need.
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