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Old 28th Jun 2021, 11:14 pm   #9
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: Cyrus III amplifier - output stage failure.

The lead in leaded solder acts to make the tin content behave. In unleaded solder and tin plated steel, it gets a free rein to grow dendrites.

David
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