regarding the fungus attack.. This is not a fungus. it is copper oxidization. since you live in Kerala (same as here) humid and salt breeze can cause this.

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I live in Kerala, India, which is a humid place, being a coastal state. We get good rains for almost 6 to 8 months. The Oscilloscope is placed near the window in my bedroom converted serviceroom. The dampness in that area is likely to cause fungus attack, especially when the scope is not used for many weeks.

Yes, you are right we are prone to fungus diseases, and I too had its attack a couple of times, which required long treatment. Generally our body develops resistance.

Corrosion many times is a result of its attack.

The 'attach' was a mis-spelt word for 'attack', which has subsequently been corrected.

Many thanks for your valuable comments!

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What attracted my attention to this article is the "...fungus attach...".
I'm interested in is how could the fungus live in such of hard environment like an electronic device PCB board etc.
There are many chemically components (copper, soldering paste, Zn, Pb etc. )on the PCB and that is a good area for corrosion than fungus.
I assume that scope was in a really humid environment because fungus needs a humid environment.
If there was a humid environment there should be corrosion an not fungus.

But, however, I would also investigate if that environment is safe for human living.
Several times I found fungus on electronic devices but only outside, never inside.

This is really interesting.
Thank you for this article.
My best regards.

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