Familiar, perhaps, to every household situation: podklyuchayut all household appliances, which is in the apartment, but in the end — tube on the flap burn out from overload. More precisely, due to the excessively increased current in them melt, breaking the electrical circuit, a special low-melting insert and safeguard wiring from the further heating and ignition. Save these simple, in General, the devices and from large troubles in the so-called short circuit due to insulation breakdown, the inclusion of faulty electrical equipment or in the course of work on nabestaanden (particularly dangerous and inappropriate!) sockets, lamp cartridges, etc.
THE TUBES BURNED OUT…
Outfitting your bathroom under the bath, he decided to make a strong (about 3 — 3.5
Since the house has antique samovar, a sin not to use them at least on special occasions. You can even with the ignition not to bother, but just ready with boiling water, poured inside. At first, I did not yet matured the decision to equip this relic of a tubular electric heater (Teh), while maintaining almost unchanged the appearance of the samovar and the basis of its unique design.
Compact electronic controller, enabling a smooth and in a fairly wide range to change the brightness of the incandescent filaments, power water heater or the speed of rotation of the shaft of the AC motor, can make even inexperienced hams. Because the proposed device is familiar to many publications previous unique and well-proven technical solution: the triac with economical control by pulse-phase method. Besides the principal circuit diagram complements fleshed out a printed circuit Board with specification of the layout of the installation. And radio the design used is quite common.
As you know, the cost of electrochemical cells has increased significantly. Therefore, many owners of portable radio equipment are beginning to use batteries. And they must be timely and properly charge. Of course, when the apparatus used a bit (and besides, it is all the same type), the problems with no charge. After all, to get a good charger (memory) for a renewable source of electricity in a single “radioimage” is much easier than, say, to ensure the viability and flashlight (and it 2хД-0.55 C), and all-wave receiver (5хД and 0.26 D), and tester (Sht-0,06). In addition, note that the proposed market memory in the majority of the road is not very reliable, is designed only for a certain type of batteries, and a strictly fixed number of elements.
The proposed electrosurgery, I am sure, will find its rightful place in the kitchens have gas stoves, when the ignition of the gas burner appliances and other devices with the “blue fuel”. It is convenient and trouble free. It can make for a night or two, pre-armed with a small piece of one-sided foil fiberglass and a minimum of inexpensive and common parts. A faithful guide to action will serve as a sketch of the printed circuit Board and Assembly drawing.