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In switching-mode power supplies , noise present in the control loop circuitry of the supply causes dislocation in up-slope and down-slope timing of the saw-tooth ripple waveform. As a consequence, the ripple waveform exhibits jitter and noise carried on the ripple also jitters. When this type of supply bias is used to power a system operating ...
By 1998, flappers had been redesigned to withstand continuous immersion in 2000 Flushes or Clorox bowl cleaners, then the most popular products. [12] A rival in-tank cleaner introduced by Vanish in 2000 caused problems until 2005, when new durability and marking requirements for flappers were added to the ASME A112.19.5 standard on "Flush ...
Mains hum, electric hum, cycle hum, or power line hum is a sound associated with alternating current which is twice the frequency of the mains electricity. The fundamental frequency of this sound is usually double that of fundamental 50/60 Hz , i.e., 100/120 Hz, depending on the local power-line frequency .
Originally developed in 1958 by inventor and cleaning product pioneer, Harry O’Hare, Ty-D-Bol in its original form is a blue liquid cleanser/disinfectant for the toilet bowl. Other variants, such as a solid tablet in a water-soluble wrapper, to be placed in the toilet's water tank, were introduced later.
Toilet cleaner is sprayed around the rim and into the bowl of the toilet prior to the use of the toilet brush. The toilet brush is used to scrub the toilet, removing stubborn stains and biological debris. In recent times, automatic toilet bowl cleaners that clip onto the rim of the toilet and clean with every flush have also become prevalent.
Initially, Vanish sold their product in a white 22-ounce showing the bowl cleaner coming from the bottom of the "I". After World War II, Vanish advertising started to show a woman pouring the product into a toilet bowl, and then a hand, obviously female, pouring powder into a toilet bowl. Dunaway won on appeal. [3]
A simple general-purpose desktop power supply used in electronic labs, with power output connector seen at lower-left and power input connector (not shown) located at the rear Interior of high-end linear power supply with toroidal mains transformer. A power supply is an electrical device that supplies electric power to an electrical load.
Ultrasonic cleaning uses cavitation bubbles induced by high-frequency pressure (sound) waves to agitate a liquid. The agitation produces high forces on contaminants adhering to substrates like metals, plastics, glass, rubber, and ceramics. This action also penetrates blind holes, cracks, and recesses. The intention is to thoroughly remove all ...