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The city of Slantsy, Leningrad region. The simplest electric power regulator, a dimmer, can be made of five parts. Well, this is if it is not very effective or if there is a symmetrical thyristor, that is, a triac. But what if there is no triac, it is far to go for it or the parcel takes a long time to arrive, and you need a regulator. I suggest one of the options for solving the problem. And in general, is it possible to make an analogue of a triac, for example, from two thyristors? Yes, it is! But there is a nuance ... OK: https://ok.ru/profile/135494481527 VK: https://vk.com/id571605378 Call sign: R1CBD