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Now a subject New Year’s, we will have a talk about fir-tree garlands. There as though everything is very simple and clear. Low-power bulbs on tiny tension undertake, everything will unite in consecutive connection, and, the garland is ready. Not so essentially, to a descent a garland распаивается as once there was the most usual method without the aid of others to make the elementary garland. As well at present it is possible to meet the Chinese garlands where bulbs are unsoldered at plant. Perhaps, that it and not plant, and any rural artel. In fact, if bulbs are fixed in the boss, becomes sensitive more conveniently, but own essence does not change. Main defect of such garlands, this consecutive connection. And if at least one fused, and in a case with the boss the connection simply weakened, all garland becomes disabled. It is necessary to check everyone, and them can be much if to take bulbs on 6 In, 220 In/6 In = 36,6 ~ 37 bulbs.

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Fig. 1. Fir-tree garland.

There can be a question, what relation has fir-tree garlands to engineering systems? In such ordinary look the very remote. And here, modern garlands are already even closer to them. In – 1-x, it is possible to be released from serial connections. The garland becomes more reliable at once. If any one bulb fuses, the garland remains efficient, and can be that anybody and will not see that one of a hundred part of bulbs does not work. But that it to provide, already separate power unit is necessary. And if to use not ordinary bulbs, and even not finger-type which were popular at one time, and that-nibudt already more modern. For example, light-emitting diodes.

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Fig. 2. Light-emitting diode fir-tree garland.

For that it is useful not simply the power unit, and with the quite good stabilizer. It is possible to go still further, to take three light-emitting diode garlands of different flowers, or one RGB that actually same. And to them a dimmer, or even more advanced control unit, it is possible to receive completely difficult engineering system. By the way, to make it it is possible also the hands. Under force even to the child, control units at present are on sale, as well as light-emitting diode rulers. Including, and popular дюралайт. And taking in attention that after the power unit at us tension 12 In, such creativity and threats for the child will not represent.

Merry Christmas!
Happy New Year!