This solo can was developed in Moscow RonsOrg "Alternativa" in order to preserve the can tin covering as long as possible.
Can has two 3.5mm mini-jack plugs on both can ends. They are connected to can halfs in a way that lets change the polarity of the halfs, making electronic current flow either from one half of can to another or visa versa.
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It is known that main reason of cans short life is the thinning of the tin covering. Solo cans especially suffer from that.
The reason of such thinning is mainly not wear and tear, but the phenomenon called galvanic transfer, when ions of tin influenced by electronic current flow from one half of the can to another. Because of that covering of one half becomes thinner and of another half - thicker.
So if we change polarity of the halfs and reverse the process it would recover the lessened covering and increase the life of solo can drastically.
To do so you just need to change the cable from one side of the can to another.
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