Question about AKG SolidTube Professional Microphone

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Problem With the Power Supply for AKG SolidTube

The fuse blows out after one time.  I replace the fuse and I can record for half an hour or more, after that, the power supply shuts down.

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  • rcerratoc Feb 27, 2008

    Thank you mike



    Could the mic cause troubles even though this sounds good? If so, Could it be the Tube? I made a test replacing the fuse 125ma (the power supply keeps on for 1 minute and blows out afterward) for one 250ma (the power supply keeps on but gets hot and shut down after a hour some times less time)

  • Anonymous Jul 09, 2008

    Bought my new SolidTube in January 2008. Used it on three different days. After 10 minutes of warmup, I get no noticable sound level when singing into mic, although I can hear my voice very faintly, as if it's on another channel with the fader right down. Then....after 2, 5 10 0r 20 minutes...suddenly...there's the vocal ...!! Makes me crazy. Maybe the PSU is made by Behringer. I expect more for $1300...! Pete LeRoy Cape Town South Africa
    email: lyrixunltd@telkomsa.net if you have a solution. Thanks!


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  • 17 Answers

Well your obviously drawing too much current.
The other given is that it takes time. This means its a thermal problem. Temperature goes up and current goes up with it.

Look for plastic or cold solder joints. A plastic joint is dull and brittle also look for islands in the solder joint where the solder
is actually disconnected from the part.

Components like regulators also can go thermal.
Look for discoloration.
Get the unit to act up and carefully spray freeze mist at
various locations and you may agrivate it.

Problem may be in MIC and not SUPPLY.

Good Luck

Posted on Feb 27, 2008

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Posted on Jan 02, 2017

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