HOW TO SET UP THE ANTENNA?

HOW TO SET UP THE ANTENNA?Almost all users as a stationary radio stations (including those intended for civil radio on 27 MHz), and automobile radios and 4M AM (amplitude and frequency modulation) are faced with the need for optimal coordination of antenna-feeder devices (hereinafter — AFD) with the transmitter. To increase the range of a portable (wearable) mobile stations are sometimes also connected to respective external antenna, for Example, in the CBS range on an antenna called “5/8” vertical polarization and pin around 1450 mm That is the solution of the mentioned problem is important for all radio Amateurs with an active and effective (long-distance) communications.

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A SPRAY-JEWELER

Pulverizer offered ruts, Duplenko from the city of Ekibastuz, intended for painting models. Its advantages — simplicity of manufacture, reliability, the absence in the design of scarce materials and components. The device is clear from the figure. The tank for paint — small cans, pump — improvised (but not excluded the possibility of using a Read more…

THERMOELASTIC FOAM

THERMOELASTIC FOAMIn our self-similar groups the foam — some of the most popular materials. One day we read in the “M-K” (No. 9, 1977) about the different ways of processing foam. We liked most of the foam cutting hot wire. We did a few of their stanochki and accessories and we offer readers “M-K” is one of them. It’s called “Electrothermal Board cutter”. All the details of it mounted on a wooden U-shaped panel assembled and glued plywood 12 mm. Cutting tool is nichrome wire thickness of about 0.5 mm, sandwiched by two M8 bolts, drilled through by a drill bit Ø 2 mm. Supported by her taut arc spring strip steel with a thickness of about 2 mm, privernuty to the panel with two screws M8.

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PROFESSION “PART-TIME”

PROFESSION The unit, working two or three hours a month, can cause at best confusion, and yet well known vacuum cleaner is used in this way useless waiting in the pantry. Having built the design shown in the figure, you simultaneously and make your vacuum work more productive, and will save the kitchen, and the apartment — specific odors.

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SELLER OF AIR

THE SELLER OF AIRThe idea of compression of air and practical use of its in new condition not new. Alexander Belyaev in his work “the Seller of air” introduces us to the prospects of this direction. The hero of his works Bailey clutched the air in the balls and kept them at a temperature equal to absolute zero.

TRICKLES SOUND HEAVENLY

AND WILL POUR THE SOUND OF HEAVENNow available is a vast assortment of various acoustic computer systems — almost every company that produces computer hardware, supplies the market and the corresponding acoustics. The consumer only has to choose the right system, based on the ratio “price — quality”. But not everyone can afford the “cool” equipment, and at the same time, I feel that the sound was not worse. Well, for homebrew, even a novice, this problem is quite solvable: sound active inexpensive computer speaker systems can be improved independently. For illustration, the author offers a description of the modernization quite common columns SVEN (model SPS-828) made in China.

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POTS-UNIVERSAL

POTS-UNIVERSALYou presented a large bouquet or you bring one from your country area — where to put it? There is a beautiful crystal vase but it is too big Need something roomier And that can be on hand wherever a bouquet fit without any problems? Of course, just the glass jar. But luxury flowers as something not very much in tune with the bottles of pickles. However, if there is a way to “disguise” the jar to make it look more aesthetically pleasing, especially as the flowers were brought into the house. Why not put the jar in pretty pots? The more that they make this will not be easy, though, and will have to make and effort and skill.