The electrical part of the trap (Fig. 6.18) represents the voltage multiplier the network 220 V to 1.5 kV.
The trap itself is a rectangular box with top cover.
Rectified voltage of 1.5 kV is fed to a disjoint circular printed the conductors, which are located inside the box. In the center of the lid has hole. Inside the bear traps bait (for example, bread soaked in beer) and is put in places where insects. The device included in the network.
Despite the plainness of the design, the effect of traps is simply stunning! If you there are cockroaches (and probably a lot), per night trap will be Packed full of them top. Design safety for humans is provided by placing current-carrying conductors in a covered container and thorough insulation of external construction elements.
In your device, you can use any diodes for voltage more than 400 V.
Author: Seman A. P.