With the magazine “modelist-Konstruktor” sign not the first year. Mainly as a diligent reader and a little less like a homebrew, trying in conditions of simple home workshop to put into practice some of the promoted ideas and solutions. Now offer one of their own developments. Its essence is in the equipment standard plug led indicator. Upgraded fork gives you the ability to visually monitor a current flow in the load. When specified in the schema the values of the total capacity of devices connected to the plug-signalling device shall not exceed 500 watts. Well, if the load is solid, will have to replace the placed in the fork diodes КД208А to the semiconductor counterparts with higher energy parameters.
PLUG-ALARM
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.
It would seem that can be the total electric drill hole puncher, washing rubber (eraser) and a paper clip? But O. Lavrov, who considers himself a graduate of our magazine, was able not only to see it shared, but make stationery to work successfully in a number of original technical solutions. As a result of normal (and battered) drill inquiring of homebrew has expanded its typical “drill-tocil-wide” function. Now she can, if necessary, and tighten screws to Unscrew, and if you really itch — even a jigsaw or hacksaw would work tolerably well. All you need is the right tooling (this material is not considered).
Thank you so much, friend magazine, for the development of welding transformers. Inspired by the publications took a chance and made themselves compact, but quite powerful “svarochnik” based on “on the margins” of the burnt stator from a induction motor. Now that dream is about as good design of the rectifier… help me out, dear journal. On you one hope!
Industry now available good double wire with PVC insulation, which occupies when winding on the bobbin a little space. So there is no need to do cumbersome carrying, about which the magazine wrote some time ago. However, the idea Tihonovich from Kharkov (“modelist-Konstruktor” No. 10 of 1985) good. So I decided to develop it further, making the appropriate changes.
Happened that my electric “Rossiyanka-2” went out on one of the switches controls the degree of heating burners. So much so that no restoration is not subject. A suitable replacement for him even in a repair shop not found. Rescued… the thermostat of the burnt iron. However, had a bit to accommodate this, tuscawilla in storage, site.
Industries is not only “pedal” means of transportation and sports equipment to strengthen leg muscles. In the right hands it is easily converted into a variety of small-scale mechanization, as “modelist-Konstruktor” has repeatedly been told on its pages (№ 11’81, 3’85, 2’87, 7’96). And therefore development, are addressed to cyclists — and fans of night riding with brightly burning (alternator) spotlight, may be useful to other readers.
In order not to keep the additional wiring to connect the auxiliary electrical appliances at work using portable lamps, enough cartridge “carrying” to install a homemade adaptor as shown in the figure. For the manufacture of the adapter is used the lighting cartridge, in which are drilled three holes: one in the bottom under peeled from the glass and glue the cap the blown bulbs and the two side under the plug. Before you glue the base with epoxy resin in the bottom, it is soldered from the inside of a flexible insulated conductor with a length of 45 — 50 mm.
It often happens that the collective TV antenna is not working properly. In our high-rise building, for example, to take a high-quality image with such antenna only one TV channel. At other rescues antiquated room, which involves, unfortunately, a number of disadvantages.