Compactness, maneuverability and good traction — the undoubted advantages of the one-wheeled tractor created at the station of young technicians in the city of Novotroitsk. They managed to obtain, using the unusual tillers layout of the “wheel — motor”, which provides a minimum unit size, and ease of transmission.
Equalizers are designed for frequency correction of the playback devices. The scheme of such a device published by the Romanian magazine “Technium”. We are talking about passive bandpass tone corrector, is connected between the two amplifier stages, compensating the loss of gain in the passive circuits. Variable resistors R7 and R5, respectively, lower and adjust the lowest frequency, R10 — medium and potentiometers R13 and R15 — highest and the highest frequency.
That the cord does not interfere with the movement of the sled during the descent from the mountain, I propose to make it retractable. For this to end you need to tie the two segments of elastics and pin them at the back of the sled. The knots will serve as the limiters of pulling Read more…
How to be if urgently need to carry out drafting work using ink, a special ruler with a raised above the paper edge among the tools was not there! A way out of this situation is shown in figure — two or three paper clips fixed to the usual square or line, thereby eliminating the Read more…
To improve the performance of micro-motors, internal combustion modelers increasingly use parts from non-ferrous metals. For example, the cylinder liner can be made of brass, and the piston is of aluminum alloy. To such a pair worked better, mirror shells coated with a layer of chromium.
And still they build these “crazy” dragonflies, looking unusual even against the background of experimental models of Buchvostau! Build them despite the fact that the class unmanageable rotorcraft problems and tasks much more than in any other. However, maybe this “incompleteness” are they attractive?
Sometimes when working on a ladder is required to extend, trim some detail, and to use the necessary tools. Great convenience will create a removable stopni-workbench, which is easy to do several rods and a piece of plywood or chipboard.
To increase several times the volume of the wardrobe and save in the proper form of things you can if you use a metal chain with large links and hang the hangers with the clothes as shown in the figure.
Flooring will be much neater and better if, instead of the traditional wedges to use an ordinary car Jack. Under the support leg of the Jack placed bars of appropriate dimensions. N. SVIRIDENKO. p. Pervomayskiy, Kazakhstan
A sack and a canvas kitty (bag with a round bottom) size 550X1400X1450 and 250X1400 mm — that’s what turns the Dinghy, if it is dismantled and Packed for transportation. Compactness has been achieved by making the hull three-piece. Each section may be invested in one another as the well-known “dolls”. This feature fundamentally simplifies transportation of the vessel and allows city residents to keep it in the apartment or on the balcony, even repair right in the room. But overall body length is impressive, more than 4000 mm and width 1400 mm. On this Dinghy you can take hikes of the day off and indulge in tourist travel, to swim in shallow water, Wade in the reeds. And although the contours it is designed for light wind and sailing with a full load, capacity of the Dinghy (about 300 kg) allows to accommodate a crew of two to three people, it is well withstand a wave height of two feet and wind speed in the gusts of 4-5 points.
