As a stand-alone power source flash FIL-46 I use a voltage Converter PN-70, manufactured by Kharkiv enterprises “ECHO”. In the process of operation of this device revealed its drawback: after charging the storage capacitor and ignition indicator lights, signaling willingness to work consumed by the inverter current decreases from 1.5 A to About 1 A, that is, the batteries are not disabled and continue to discharge. This leads to rapid failure. To stop the discharge of the batteries is possible by disabling the flash from the unit manually by taking out the plug from the socket or set forth in the chain of socket switch. However, both methods are inconvenient due to the fact that distract from the shooting.
ECONOMICAL PN-70
In the December issue of “M-K” for 1990 were published material about the switch-gubbare. There is proposed a technical solution I liked, but… think about it, has developed its own version. In order to turn on the light of the two points, sometimes enough to modify the normal switch. It is necessary to disassemble and install a third contact plate. This is done quite simply.
Honeybees live on the Earth for over 10 million years. And of course, tried to adapt to the environment in the wild but not at home… From hibernation they often go weak, susceptible to infectious diseases. And even whole families die. Although, it seems, and here nametype has, as they say, your height. Beekeeper-inventor and long-time subscriber “M-K” S. Kalashnikov developed an original method allowing the bees to facilitate the winter, they create a truly comfortable environment with the use of additional (electric) heating of hives.
Many plants, like tomatoes, during its growth and fruiting require a lot of moisture, so they often have to be watered, especially in hot season. The proposed machine will help you save valuable time and eliminate the need to be constantly “tethered” to their Pets. Just turn on the power and set the clock correct time of watering. The device is simple to manufacture, and at the same time it is reliable in operation.
My burner — ejector for high temperature soldering. Running from the LPG cylinder. It is economical: the number supplied to the gas ejector can be adjusted. The burner is arranged in the following way. From the gearbox or gate valve on the cylinder gas is fed through the hose to the inlet tube built into the base of the burner. From there it flows through the vertical channel of the rack in the Central bore of the body of the jet, where the amount dosed adjusting needle mounted on the threads of the housing cover. Further, the gas supplied to the nozzle and ejected through the hole.
The dream of many guys who build model ships to create a ship, very similar to any real prototype. While it would be good to compete with him. Offer a good model of English search and patrol boats RAF 340, made on a scale of 1:42,7 according to the requirements of the popular class EX. A small twin-shaft vehicle of the second world war, he participated in search and rescue of downed or in distress over the sea pilots, reflecting the attacks of German aviation to the UK. The ship speeds up to 45 knots.
When using electrical appliances (e.g. electric light), there is an inconvenience: you want to sleep but have to get up to go to the outlet and remove it from the fork. The proposed electronic device allows you to control (turn in work on or off) of various household appliances at a distance of just spoken sounds. Suffice it to say a certain word and please: earned (or stopped) the radio or television; lit (or extinguished) electric lamp or Christmas tree garland.
In my opinion, the most effective seem to be those developments that do not need to “up from zero”: we will focus on improving ready-made industrial electronic devices on their own. The result is a very modern functional design, one of which I bring to your attention. This is an additional node to industrial flash SEF-1 produced once the millions of “copies”.
Homemade welding machines are engaged not the first year. In their manufacture into account the advice and recommendations of the “Model construction” and other well-established technical publications and reference literature. Started with “Welding baby” (No. 11, ’87), using the Latr ready with the primary winding. For secondary — recommended magazine, Shino-wire not found. Dare to wind the desired number of turns of the flexible stranded wire 6 mm2 in vinyl insulation. And what? Of course, such a device quickly overheated even when welding of cellular electrode. To somehow solve the problem associated with cooling, have decided to omit the “svarochnik”… in the water. Came from the fact that the secondary winding is great for insulation. And primary, which went before the slider wasn’t exposed as proactively managed to cover it in several layers of protective varnish.