Many people keep different Pets, whom delivers a lot of fun for both children and adults.
However, there are animals that also live near the person and often visit his home (for example, mice, rats). But are guests uninvited and even harmful, because they were considered (and probably not without the base vectors of pathogens of various dangerous infections.
To wean them to walk in uninvited guests" are unlikely to desire to profit they are stronger than fear, And then there's one way out, scary as it may sound, - to destroy them.
Typically this is done using toxic feeding, or all sorts of traps and traps these Methods repeatedly tested, widespread, but not always effective. It's no wonder the rats are considered to be among the most intelligent animals they are smell poisoned food and will not take, and traps and snares just passed you by or of them take the bait with such caution and dexterity that these mechanisms't even work.
Besides if rodents get caught sometimes in traps and traps or eat poisonous fertilizer awaits them a painful death that, in General, is inhumane even with such harmful creatures.
Ten years ago I worked as a lab assistant in the office of high school physics. And in him from the basement through the crack between the floor and the wall got into the habit to visit the great grey rat. Several times she came, without fear, even in my presence and very reluctant to leave, when I ran it got the arm unbreakable object: the rubber bag then carton box
Tried to use against her almost all the traditional tools, but to no avail.
I had to think about how to outsmart her. In the end came up with.
In the laboratory, even with pre-perestroika times, when school radio the circle worked successfully and won many victories in the radio sport, were in abundance any "electronic stuff" From him and decided to make for rats "electroline boom", working from household mains AC. Leave the device on overnight under tension unattended contrary to the rules electrical and fire safety was a risky business, Then decided to construct a more improved device, acting on the electric charge accumulated in a fairly powerful couple (battery) capacitors "Electroline boom" the result is a simple, mobile not issuing any alarming smells and sounds.
The device consisted of a pair of plates of one-sided foil 1 mm Micarta turned conductive layer up. The strips can be performed from normal sheet, but only if the location of the device for use on dry insulating base, for example, on a wooden floor. On the ends the strips were clamped by two electrolytic capacitors - their self-titled conclusions soldered to each plate, thus obtaining the battery in parallel connected capacitors. Capacitors took 50 value UF x 450 In order to they were for a long time a large enough voltage to ensure that lethal force even at low self-discharge battery
Fig. 1. The layout of the device: 1 - plate (one-sided foil-plated hardened paper s1, 2 PCs); 2 - electrolytic capacitor (2 PCs), 3 - bit resistor R1. 4 - socket, 5 - plug connection to the load, 6 - rectifier diodes, 7 - charger resistor R2, 8 - mains plug with wire.=
Fig. 2. Schematic "electroline"
The length of the plates was determined by the width of the track that was supposed to block "electroman" on the possible route of the animal and was about 500 mm Width plates was about 100 mm, but this is probably the maximum, although less than 50 mm to do them too impractical - this harmful rodent plate can easily and jump - in dexterity and ingenuity, the rat will not be denied. The distance between the plates (gap) was small - only about 10 mm, it should only slightly larger than the size of the feet (paws).
In addition to the capacitors to the plates were soldered wires attached to one of them the outlet To the outlet to charge the capacitor was connected from fork the simplest rectifier consisting of two series-connected diodes DB. To reduce the current in the charging circuit before the diodes resistor resistance of 8.2 kOhm the Other ends of the rectifier was connected to 220V.
And yet. To one of the plates was soldered to a lead dvuhletnego resistors 10K. The other conclusion remained free and was hanging over the second strip by Clicking on the resistor is non-conductive object, for a few seconds, the capacitors could to unload and make safe the device.
The evening before leaving work was charged in the capacitor device using homemade rectifier almost to the peak voltage (about 300 V). (If there was a suitable source of supply, they could be charged and almost to the maximum allowable voltage capacitors) then installed electromyo around the slit, through which came and went rat.
On the third morning "electroman" worked - around device lay prostrate the enemy.
Author: A. Lisov, Ivanovo