TRANSCEIVER — TO LIVE LONG

TRANSCEIVER — LIVE LONGTRANSCEIVER — LIVE LONGTransceiver SV MJ-2701 company MegaJet is designed for a supply voltage of 12.5 V, which, despite its “special” purpose to work as an automotive MW transceiver with power from the onboard network of the car 12, is not reasonable from the practical point of view and logic. As is well known to experienced Amateurs and professionals, the voltage of the car (meaning a car with a battery voltage of 12 VDC) when the engine is running can reach 15 In (these are the parameters of the relay controller charging battery). Consequently, some electronic and radio system (including transceivers) when operating in the vehicle fail.

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BUILDERS TRAILS

BUILDERS OF TRAILSEvery year increases the number of syt and Palaces of pioneers, where the pipeline automodelismo. During the construction of trails is often necessary to perform smooth transitions from concentric circles to parallel straight, which causes some difficulties. At the station of young technicians of the Leningrad district of the city of Yerevan was built trendoriginal track. Today we decided to share our experience of graphical representation of the curves of the track.

DEEP METAL DETECTOR

DEEP METAL DETECTORIn the journal “modelist-Konstruktor” No. 3 for 2006 C. A. Kotov shared with the readers the experience in the manufacture in a home workshop metal using scrap materials, in particular, one of his options was made on the basis of the hockey stick. Developing this theme, the author offers a new development.

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CALCULATION OF SCREWS

CALCULATION OF SCREWSTo build templates of the screw (side view) for a given shape of the blade (top view) and the step there are two main methods of calculation: analytical and graphical. Usually based on the following characteristics: diameter, the relative width of the blade and step. Since the amount of slip is difficult to consider in advance, based on the geometric pitch.

RECHARGEABLE BATTERY

RECHARGEABLE BATTERYSealed alkaline nucleotidase (NiCd) and Nickel-metallgidridnye (NiMH) batteries are finding increasing application not only in industrial devices but also in home appliances, replacing batteries size AA and AAA. But these batteries, like any other, eventually “emptied” and require charging. To recharge, as recommended by the instructions for use and marking of the batteries themselves, through them must pass through the current ICT = 0.1 mA from the numerical value of the nominal capacity C for 12 — 16 hours.