Ingenuity rural operators will not refuse. I had the opportunity again to be sure, when one major economy saw operating safely pumps made by local craftsmen from the brake cylinders from the truck ZIL-130. Such a cylinder could “work” in the pump, it is first disassembled. Having free access to the plate-washer, attached to it a diaphragm with two M6 bolts. After Assembly, between the cylinder housing and the diaphragm spring has left large diameter. In the cylinder cover I drilled two holes for the intake and exhaust valves.
If the layout of the rural house or garden such that the largest room borders the kitchen, instead of the disparate sources of heat (conventional oven or the fireplace in the “hall”, and plates in the kitchen) it makes sense to build the complex furnace-fireplace-stove. In our farmhouse and made: all heat sources are connected to a single volume with a single tube (of course, alternately use it) that gives a noticeable savings of space and materials. Feature of the complex is that the fireplace is easy to turn to the oven and Vice versa. In addition, by manipulating the valve-mi-sliders from great room to heat the kitchen or, on the contrary, from the kitchen to actively nurture a warm room.
Externally, this padlock is no different from thousands of his fellows, keepers of the storerooms and garden sheds and utility rooms, stores and warehouses. Dumbfounded except for one detail: it opens… with a screwdriver. Is it possible to trust such a frivolous device, to unlock which can even mischievous boy? “It is possible, — says its Creator engineer I. Yankin. — Open my castle, not even professional burglar, although the key is really little and thin as a knitting needle, screwdriver. The secret is not in the key, and in the castle!”
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.
In issue 9 of our magazine, a story was published with the exhibition NTTM-2011. Despite the rather significant amount, it was told only about transport designs, developed the student creative groups and young inventors. Side by side with them demonstrated their achievements and more young modelers and designers. Their work represented a variety of directions of scientific-technical creativity: from simple scale models to innovative technologies and projects of space systems. And it would be unfair not to tell about them.
After reviewing long series of projects the reader is already well placed to judge myself about some of the doctrines of the Soviet fleet development-related class cruisers. In brief these can be summarized in couple of words: universality and self-sufficiency. It is not surprising that in seeking to achieve these cornerstones in the end, there appeared a giant among modern missile ships – type “Kirov”. Another branch of “self-sufficient” combat units of the fleet of the Soviet Union became the cruiser-helicopter carrier “Moskva” and “Leningrad”, also very versatile ships. But they turned out to be only an intermediate on the way to the emergence of these monsters hybridization of aircraft carriers.
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.
When among students who have mastered only the basics of the original automodelisme, comes to talking about the class of simple machines, rubber motor, it is submitted immediately think “sophomoric”. They say, in the age of radio, heavy duty electric motors and internal combustion engines are very popular and widespread at the time the class is now an anachronism and good except for exploring the world of car.
Mini makiki always use the boys great success. And for good reason! Small size, cost-effective, modern appearance, excellent performance — what more can you ask for? Maybe that’s why many of them roll up his sleeve so take tools. After all, if you try, you can do mokik, able to compete with serial two-wheeled machines. However, it is not very easy, but it’s worth it.