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Audio output converter device

$30-250 AUD

Cancelled
Posted over 7 years ago

$30-250 AUD

Paid on delivery
Requirements: 1. Connect the engineered device to the mobile phone's jack output 2. The device has to have an analog button to amplify the signal (like the volume button on a radio) 3. Another button / switch to change the sinus sound waves to square waves. (on or off) 4. Change the voltage to 50-100V (based on the amplifying) The power source of the device is a small battery (AA or 9V). The output is also a jack socket (mono).
Project ID: 10846791

About the project

5 proposals
Remote project
Active 8 yrs ago

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Looking as simple analog device. What are the requirments to output power and THD? What is the value of load resistance? I think, I can do this work from schematics to prototype (and maybe to fisrt small scale batch)
$166 AUD in 7 days
4.6 (3 reviews)
2.1
2.1
5 freelancers are bidding on average $222 AUD for this job
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A proposal has not yet been provided
$222 AUD in 7 days
4.7 (4 reviews)
3.8
3.8

About the client

Flag of AUSTRALIA
Hornsby, Australia
5.0
2
Payment method verified
Member since Jul 18, 2015

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