NEW CLASS: RADIOLOGY

NEW CLASS: RADIOLOGYMany quite rightly believe that automobilism is one of the most exciting and spectacular forms of diverse technical activities. Here you can find a lot of sharply differing from other classes of models, including, it seems, the whole conceivable spectrum of interests of athletes and fans of all ages. However, in automodelisme there is a continuous development. Today, we are talking about a completely new class of RC — “Buggy-8D”, which in Russia is more than short. The first official information about it was entered the Central self-similar club in edition of changes and additions to the rules of the competition for the self-similar sport at the end of 1993. In the same year took place in Tambov and the first “booster”, the championship of Russia in the new class. Participated athletes using exclusively machine-handmade. Unfortunately, the result of these competitions was due to poor weather conditions is almost zero.

STATIONERY IN… DRILLS

STATIONERY IN DRILLS...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).

RC10L RACING TURNS

RC10L RACING TURNSIn the Russian self-similar sports, as worldwide, the most popular class of RC 10L. RC little micro-car is equipped with a motor of the type “Mabuchi-540” and the battery pack of the six elements. Control occurs through two channels — the turn of the front wheels and speed control of the motor. Competitions are held on the track, marked side; it can be fitted inside (in the hangar, hall, indoor stadium) and the outdoors. Body patterns repeat! real racing car in scale 1:10.

 

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ASSISTANT WELDING

WELDING ASSISTANTThank 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!

 
L. Bornovolokov,
Kemerovo

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THE “LONG” COIL

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.

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DYNAMICS — SECOND LIFE

THE DYNAMICS OF SECOND LIFE

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).

TRANSISTOR – LIKE A TUBE

ULF bass reflex on one first transistor. Numerous calculations and experiments to create powerful high-quality low-frequency amplifier has led me to believe that the most promising way to the design is to use a phase inverter on one first transistor. It is curious that such amplifiers could be forty years ago, but this has not happened due to a number of reasons.

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BRIGHTER AND SMOOTHER

BRIGHTER AND SMOOTHERIndustries 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.

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