Popular in the electronic literature was repeatedly highlighted by various fixing methods to the dynamic head (DG). Unfortunately, they all have some significant drawbacks. For example, to retrieve the diffuser is offered with a solvent to soften the glue that is attached to the body of DG. But after the solvent gives off toxic smell and are unlikely to be acceptable in the home. In addition to this operation requires quite a long time. Next snag — the impossibility of exact alignment of the frame of the voice coil relative to the magnetic core in a home workshop. This ultimately affects the quality of work DG — there are crackles and other distortion (especially at maximum output power).
Engraving machine is designed for deep drawing of inscriptions and drawings on metal or plastic. In the machine used flexible shaft with collet BorderStyle from the medical drill. The drive from the electric motor KD-30 UCH power of 60 watts (electric typewriter). The rotation of the motor shaft at a speed of 2700 rpm allows you to do without a reducer.
It would seem that after Robert Fulton managed to create an almost working submarine, the diving business had to go forward with good speed. However, the main engine of progress in this area was the war, and after the bloodiest of the Napoleonic era in Europe and America came a lull. Of the immediate followers of Fulton can be mentioned is that the brothers Kössen, who had just “to the table” and built in 1810 in Le Havre an obvious rip-off of the first “Nautilus”. (Actually, the brothers did not hide a “source of inspiration”, even naming his creation “the Submarine Nautilus”).
A zealous owner-samodelka all always there. Even his mini-tractor at times there, not to mention the mower-threshers, other motorcycle and electropolishing. And that’s very understandable with this equipment really is never ever lost. A worthy place is occupied, helping to maintain the farm in good condition, manual tools and simple (but highly effective in fact) fit. Some of them, the magazine has told its readers. Basically, it was more design and technical solution “for the garden” (“modelist-Konstruktor” № 6’91, 9’93, 5’95). The following publication on a makeshift structures, the scope of which focus on a personal farmstead. They are made from so-called scrap materials, “home” technology accessible and understandable to any beginner. At the lowest cost possible to get the maximum result.
The wind has always been a symbol of impermanence, and attempts to transform its energy into electrical energy has led often to results that are not very encouraging. Indeed, everything you expect from the source of electrical energy stability: clicked the switch and turned on the light. And the wind, alas, changeable. However, to make it a reliable source of electricity possible, to use already well developed scheme with intermediate energy storage battery.
In my family there was a situation when my daughter went to first grade, and hence it took for her workplace, where they could prepare lessons. However, the area and the interior rooms are not allowed to set Desk. Trying to solve this problem, managed to find another option. Extendable dining table, which stands in one of the rooms was used for this purpose. But with some addenda. It is clear that for the convenience of training is not enough to have only working table surface on which to write and draw. Still need a place where you would gently fold the notebooks, textbooks, pens.
