Color's Kapanadze forum, FE builds circuits and comments

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I am curious about the faces of humans who also create junk-garbage circuits.
Humans who don't actually experiment and only experiment with computer keyboards have a big problem.

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There are members in the cafe who use high voltage microwave diodes that go into microwave ovens.
To rebuild the obsolete schematic,
This is a message from an acquaintance that there was an opportunity to shop in an electronic shopping mall after a long time.

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If you don't reveal the experiment, it's an empty flame.
And after one year, five years, ten years later, nothing happens in the world.
https://www.youtube.com/watch?reload=9&time_continue=132&v=e_74LSopc5E&feature=emb_title

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Humans with no value in life lose their chances of survival.

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Aluminum-air-battery
https://www.youtube.com/watch?v=fcLZ6dM-qIU

Aluminum air battery
https://www.youtube.com/watch?v=5k1hU7hxzrM

Regardless of electrolyte used it is a very simple concept.
If you put salt water in a jar & stick a piece of aluminum in it (your cathode (-)) and a piece of copper on the other side (anode(+)) & hook up a volt meter it will show voltage.
It's because aluminum is more reactive then copper. zinc works good but magnesium is better then aluminum but harder to come by.
Look up "reactivity series of metals". The reaction is based on an "electrolytic process"
This is a good design because there's a lot of surface area that's in close proximity to each other (the aluminum & copper)
Also it uses four cells which increases voltage. With a 5.3 volt output it means that each cell generates 1.3 volts.
The hole in the top allows hydrogen gas to vent thus keeping pressure from building up.
Over time the aluminum will corrode into a white crumbly powder of aluminum oxide & it will loose voltage & leak.
Until then more water will need to be added because in the reaction H2O breaks apart, the oxygen combines with the aluminum & the hydrogen is released out the hole on top.
No more salt gets added.

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It generates a higher amount of current compared to general batteries.
The downside is that it cannot be charged because it is disposable like a battery.
You only need to replace aluminum,
Compared to a standard rechargeable battery, the purchasing power is low.