Handheld Audio Generator

Parts Express Handheld Audio Generator

Overview
This convenient hand-held audio generator is perfect for field service of audio equipment and car stereo applications. It generates low distortion sine and square wave signals from 20Hz to 150KHz in 46 steps. It features a variable output level control with a 0dB/-20dB attenuator switch.
Part # 
390-650
Weight: 1 lbs.  
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Part # 390-650
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Product Details

Parts Express Handheld Audio Generator

This convenient hand-held audio generator is perfect for field service of audio equipment and car stereo applications. It generates low distortion sine and square wave signals from 20Hz to 150KHz in 46 steps. It features a variable output level control with a 0dB/-20dB attenuator switch. Output level is 1.2V max (sine wave) no load and 8V max (square wave) no load. The output impedance in 600 ohms. Includes test leads, battery and owners manual.



Parts Express Handheld Audio Generator
  • BrandParts Express
  • Part Number390-650
  • UPC756619001265
  • Product CategorySignal Generators
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight1 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Parts Express Handheld Audio Generator
Handheld Audio Generator is rated 4.2 out of 5 by 5.
Rated 5 out of 5 by from Handheld Audio Generator.I think that the Handheld Audio Generator is just great for my electronics and audio hobby of amplifier repair and radio.Great product for the hobby or audio tech.JB.
Date published: 2013-09-27
Rated 5 out of 5 by from As advertisedFor my needs in Amateur radio this product was exactally what I neded.
Date published: 2008-12-29
Rated 4 out of 5 by from good product for the pricecould have included another decade lower frequencyhowever it is a good product to test audio responce.
Date published: 2008-06-29
Rated 4 out of 5 by from great for home hobbies.excellent for hobby testing on a small scale, great price too.
Date published: 2008-03-11
Rated 3 out of 5 by from Works as advertisedIt fills the bill for a low cost, easy-to-use, portable audio generator for basic audio tests. It was a good signal source for checking the impedance of one of my speakers. I'm sure I'll find many other uses for it.
Date published: 2007-10-16

Product Q&A

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Parts Express Handheld Audio Generator

Novice needs basic information.

Would this work for diagnosing faults in audio (tube and ss) preamps and amps? What about receivers? Is this what you "inject a signal" with? You would also need an oscilloscope to observe the pattern?
Asked by: dogwalker
Dear dogwalker,This device is used just in the way you described. In analyzing audio equipment this would be used as a audio source. This devices output would be applied (injected) to the input of an audio circuit such as the preamp, amplifier or receiver. The output would be monitored with equipment such as a oscilloscope, AC voltmeter or distortion meter to detect faults and errors or issues associated with the device under test. Should you need a audio source to substitute in your system to evaluate whether that device is at fault or is the preamplifier or amplifier is the issue this device would serve as a audio source to verify for instance whether you're CD player did not output a signal by applying this instead of the CD player. This could be monitored through your speakers to locate the fault in your system. In the case of the receiver being tested only audio would be tested through the inputs to the output and not the radio portion of the receiver as this could not be used as a radio source.Best regards,Eric
Answered by: ercom
Date published: 2013-12-19

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