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Buy car relays: http://ali.pub/18x6dv Good multimeter: http://ali.pub/18bb5s In this issue you will learn: how to check the relay with your own hands using a multimeter - tester. We will check the electromechanical relay and the solid-state relay, the car relay can also be checked. After you find the fault, you can repair the relay VK group: https://goo.gl/pE36V9 Advertising on the channel: https://goo.gl/r9jM6p Mail (for cooperation): [email protected] ___ Watch our videos, in which we talk in simple language about radio engineering, electronics and radio electronics, as well as about Arduino and goods from China for radio amateurs! Our lessons will be especially useful for both novice radio amateurs and students of radio engineering universities, and for experienced electronics engineers who solder every day! In our videos we give the basics of electronics: definitions, descriptions, diagrams and operating principles of various elements of radio engineering. The channel provides lessons on Arduino / Arduino; we analyze programming, connection of sensors, modules, displays, engines; we create various projects and devices on Arduino.