Now, increasingly, reminders to us of the purchased clothing meets recommendation: to dry after washing on hangers. However, on the clothesline they are — a favorite toy of the wind: a pin is not secure, and that drives them, twirling, and then reset. Saw a jig saw and plywood or plastic such that the suspension — and even the strongest wind will be powerless against them. Her curly slit and they are hung on the rope, and the hole is passed crucon coat hanger. Removed are worn quickly, and holding securely.
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THE SOLENOID
So, you are already familiar with the electromagnet, knows how to work the buzzer and electric bell (see "M-K" No. 8 this year). But there is a large group of Electromechanical devices,...
A simple voltmeter
measuring constant voltage value of 100 V. It is produced by the bridge circuit for the transistors T1 and T2. In one diagonal bridge included a measuring device in the other power...
