hum — /hum/, v., hummed, humming, n., interj. v.i. 1. to make a low, continuous, droning sound. 2. to give forth an indistinct sound of mingled voices or noises. 3. to utter an indistinct sound in hesitation, embarrassment, dissatisfaction, etc.; hem.… … Universalium
Hum-bucker — A&V A circuit (often a coil) that introduces a small amount of voltage at power line frequency into the video path to cancel unwanted ac hum … Audio and video glossary
Mains hum — Spectrum of mains hum at 60 Hz Mains hum, electric hum, or power line hum is an audible oscillation of alternating current at the frequency of the mains electricity, which is usually 50 Hz or 60 Hz, depending on the local power… … Wikipedia
mains hum — maitinimo tinklo fonas statusas T sritis fizika atitikmenys: angl. mains hum; power line hum vok. Netzbrummen, n; Netzton, m rus. фон питания, m; фон сети, m pranc. bruit de secteur, m … Fizikos terminų žodynas
Switched-mode power supply — switched mode power supply. A bridge rectifier B Input filter capacitors C Transformer D output filter coil E output filter capacitors ] A switched mode power supply, switching mode power supply or SMPS, is an electronic power supply unit (PSU)… … Wikipedia
List of ice hockey line nicknames — The three forwards – the centre, right wing and left wing – operate as a unit called a line. The tradition of naming the threesomes who compose the hockey teams lines of attack extends back to the 1920s when Bun Cook, Frank Boucher and Bill Cook… … Wikipedia
Utility frequency — The waveform of 230 volt, 50 Hz compared with 110 V, 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency at which alternating current (ac, also AC) is transmitted from a… … Wikipedia
Capacitor — This article is about the electronic component. For the physical phenomenon, see capacitance. For an overview of various kinds of capacitors, see types of capacitor. Capacitor Modern capacitors, by a cm ruler Type Passive … Wikipedia
Input impedance — The input impedance, load impedance, or external impedance of a circuit or electronic device is the Thévenin equivalent impedance looking into its input.In audio systemsGenerally in audio and hi fi, the input impedance of components is several… … Wikipedia
Voltz — is a rechargeable battery based guitar pedals power supply with the following characteristics: * Capable of supporting 20+ pedals simultaneously for 8 hours on one single charge * No more ground loops and power line hum * Multiple output voltages … Wikipedia