Over time, the cork in the thermos like shrinks, it decreases in diameter and tightly stops clogging his throat. To restore the dimensions of the tube is possible by drilling it from the top blind hole and entering the back benches of thorn — wood truncated cone.
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Simply by touching the sensing element and actuates an electronic device that includes an alarm or actuator. The sensing element Ан1 — plated plate connected through a resistor R2 with a...
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Regular readers of our magazine and viewers of the television program "This you can" know the name of the craftsman from the suburban town of Troitsk Yury Mikhailovich Orlov. Designed...
