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Voltage drop to 1.8V after few minutes of listening

sigma25, sigma26, sigma24

Re: Voltage drop to 1.8V after few minutes of listening

Postby yeahyeah » May 15th, 2010, 10:09 am

amb, you're genius
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Re: Voltage drop to 1.8V after few minutes of listening

Postby imstimpy » March 2nd, 2014, 3:36 pm

So I managed to put in the tantalum cap backwards as well. Symptoms are the same as detailed in the posts here.

There is a nice little silkscreen on the cap to tell me + versus - but I must have missed it. I wonder if I assumed the tantalum cap was similar to a ceramic with no polarity...

I have swapped the polarity on the tantalum cap and now my σ25 is powering my γ2 happily for more than a few minutes.
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Re: Voltage drop to 1.8V after few minutes of listening

Postby amb » March 2nd, 2014, 9:09 pm

I recommend that you replace the tantalum cap anyway. While it may appear to work, it might have been compromised by the reversed polarity.
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Re: Voltage drop to 1.8V after few minutes of listening

Postby imstimpy » March 3rd, 2014, 12:42 pm

Will do, thanks!
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