Good afternoon! Today we will talk about the original night light, which will serve as an excellent decoration for your window sill. So let's get started! A 100 watt incandescent bulb is taken as a basis.First we need to dismantle the base. This is done as follows: With tongs we open the top contact of the lamp, then with the help of a screwdriver and the resulting hole we get rid of the black dielectric. After that, with ease we “tear off” the threads and the remnants of the base. Glue may remain on the glass, nothing terrible. We will cover it with a new base. Next is the work with glass! Therefore, wear gloves and goggles. At this stage, we need to remove the inside of the lamp. To do this, use a straight screwdriver to gently press on the inner walls of the lamp. When the flask with antennae and filament is broken, we take it together with small fragments, wrap it in a napkin and throw it away. Put the resulting vessel on the waste cover with the opening facing up. In order not to slap the working table, put a napkin under the lid.After all, followed by working with chemical reagents. I will say at once - they are safe and generally available. The so-called chemical algae will grow in the lamp. To create them, we need liquid glass (sold in hardware stores, then JS) and copper sulphate (can be found in the shops to give, this fertilizer).In a separate jar we make a solution: we mix water and ZhS in a 2: 1 ratio (two parts of water, one part of the liquid crystal). By the way, liquid glass can be replaced with silicate glue, in which case the proportion will be as follows: 6 parts of water, 1 part of glue. Instead of copper sulfate, you can use iron sulphate (also fertilizer) or magnesium sulphate (sold in a pharmacy, it is powder to It grew seaweed, it must be moistened with a small amount of water and let it evaporate, due to this we will increase the size of the crystals, because the larger they are, the higher the algae). The color of chemical algae depends on the reagent: ferrous sulfate gives black color, magnesium sulfate - white, copper sulfate - pleasantly blue. So, we take a little vitriol.And we fall asleep at the bottom of the lamp.
- VT1 - kt315 (or any other npn transistor structure);
- VD1 - photodiode, anode (+)
- VD2 - LED;
- R1 - 100kOm;
- S1 - latching button (take the smallest one you can find);
- BAT - a “tablet” type battery (model CR2025).
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