Mercury is a naturally occurring element that is found in air, water and soil. Exposure to mercury â even small amounts â may cause serious health problems, and is a threat to the development of the child in utero and early in life. Mercury may have toxic effects on the nervous, digestive and immune systems, and on lungs, kidneys, skin and eyes.
An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave. Oscillators convert direct current (DC) from a power supply to an alternating current signal.
1 In an RC oscillator circuit, the filter is a network of resistors and capacitors. 2  RC oscillators are mostly used to generate lower frequencies, for example in the audio range. 3  Common types of RC oscillator circuits are the phase shift oscillator and the Wien bridge oscillator.