Simply by touching the sensing element and actuates an electronic device that includes an alarm or actuator. The sensing element Ан1 — plated plate connected through a resistor R2 with a grid of thyratron MTX-90 (Fig. 1). The potential appearing ka the grid of the thyratron when you touch the plate, sets fire to it. The resulting circuit mtkh-90 pulses through the capacitor C2 is transferred to the SCR Q3 and the load (relay, lamp, siren, etc.). The circuit is powered directly from the mains alternating current. The capacitor C1 plays the role of damping resistor.
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The development of carrier-based jet fighter with the designation F1J firm North American beginning in the years of the Second world war. It was the car with straight low wing and front air intake. First fighter in the series did not go, but he soon interested the air force leadership, which planned to use it as a front-line fighter.
Where to store the tools, how best to equip the workplace? To these questions every fan of tinkering responds differently. Want to share the experience easy and compact work area. odnorodnogo Desk, modified and reworked (Fig. 1).
In the old humorous song about children’s aptitudes and interests it was argued that if girls are made of bows, wrappers and ropes, boys, from screws, bolts and gelecek.
Searching for the correct gear for mechanisms of control model of the submarine I looked through descriptions of many designs with the aim to choose the most simple to manufacture. In the end I decided to use as a base for such a worm gear pair from the trimmer. The most suitable turned out to be multi-turn wirewound resistor type SP5-2 with a transmission ratio worm gear i=45.
I think that it interests not only me, but many who because of injury, illness. or accident has lost the ability to move independently. Great care of us, the disabled, shows the state. A got a good apartment. All would be nothing if… not the stairs. For those who can’t walk or hardly move, stairs are an insurmountable obstacle.
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I want to share my production version of the arcs security, which set me on a motorcycle “Java” and for more than a year of reliable service. Friends motorcyclists interested in their design: shot size, shape, etc. So I decided to offer them to the readers of the magazine.
Model rotocut of the champion of Russia 2003 G. A. Reshetnikova — further improvement of “sergievskoe” scheme, developed in tstt “Youth” under the leadership of the deserved trainer of Russia L. O. Krasnov. This variant slightly increased the angle “V” pendant of the blades (12°) and has an additional corner of the “V” at the point of kink (folding), which promotes sustainable autorotation.
Executive car AUDI A8 L 6,0 QUATTRO. It is difficult to make a choice between the “Klin” and “Zhigulevskoe” beer; it is even more difficult between firms computers “Macintosh” and “Microsoft”. And it is almost impossible to imagine anyone opting for a luxury car from the four most-most — AUDI A8 L 6,0 QUATTRO, MERCEDES-BENZ S 600 L, BMW760Li and VOLKSWAGEN PHAETON.