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Electronic pest control is the name given to any of several types of electrically powered devices designed to repel or eliminate pests, usually rodents or insects. Since these devices are not regulated under the Federal Insecticide, Fungicide, and Rodenticide Act in the United States, the EPA does not require the same kind of efficacy testing that it does for chemical pesticides.
An electronic kit is a package of electrical components used to build an electronic device. Generally, kits are composed of electronic components, a circuit diagram (schematic), assembly instructions, and often a printed circuit board (PCB) or another type of prototyping board. There are two types of kits. Some build a single device or system ...
An AM radio made from a Snap Circuits kit. Snap Circuits is a line of electronic kits manufactured by Elenco Electronics and aimed at children eight years and older. [1] The kits come in a variety of sizes, and may include capacitors, diodes, electric motors, lamps, LEDs, radios, electromagnets, speakers, resistors, transformers, transistors and voltmeters.
Bug zapper traps may be installed indoors, or outdoors if they are constructed to withstand the effects of weather. However, they are not effective at killing biting insects (female mosquitoes and other insects) outdoors, [4] [5] being much more effective at attracting and killing other harmless and beneficial insects. A study by the University ...
The joule thief is not a new concept. Basically, it adds an LED to the output of a self-oscillating voltage booster, which was patented many decades ago.. US Patent 1949383, [1] filed in 1930, "Electronic device", describes a vacuum tube based oscillator circuit to convert a low voltage into a high voltage.
Electronic filters are a type of signal processing filter in the form of electrical circuits. This article covers those filters consisting of lumped electronic components, as opposed to distributed-element filters. That is, using components and interconnections that, in analysis, can be considered to exist at a single point.