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searching for Mains hum 10 found (42 total)

alternate case: mains hum

Fontessa (798 words) [view diff] exact match in snippet view article find links to article

by a number of technical flaws. The first of these is a very powerful mains hum consisting of a 60 Hz tone and its harmonics at 120 Hz and 180 Hz. The

Single coil guitar pickup (1,766 words) [view diff] exact match in snippet view article find links to article

period accurate reproductions. The search for an acceptable solution to mains hum gained new impetus around 1995 as guitar players became increasingly intolerant

Real Love (Beatles song) (3,898 words) [view diff] exact match in snippet view article

problem I had with "Real Love" was that not only was there a 60 cycles mains hum going on, there was also a terrible amount of hiss, because it had been

Direct-conversion receiver (1,042 words) [view diff] exact match in snippet view article find links to article

high audio frequency gain required can result in difficulty in rejecting mains hum. Local-oscillator energy can leak through the mixer stage to the antenna

Switched-mode power supply (5,606 words) [view diff] exact match in snippet view article find links to article

most other supply types produce no high-frequency interference. Some mains hum induction into unshielded cables, problematic for low-level audio signals

Electromagnetic interference (4,396 words) [view diff] exact match in snippet view article find links to article

up to 100 kHz may sometimes be classified as audio. Sources include: Mains hum from: power supply units, nearby power supply wiring, transmission lines

Valve audio amplifier (1,996 words) [view diff] exact match in snippet view article find links to article

system. Valve preamplifiers use triodes or low-noise pentodes (EF86). Mains hum from the heater filaments is a potential problem in low-level valve stages

Voltage regulator (4,242 words) [view diff] no match in snippet view article find links to article

may be specified as graphs versus frequency, while output ripple noise (mains "hum" or switch-mode "hash" noise) may be given as peak-to-peak or RMS voltages

Operational amplifier (10,102 words) [view diff] exact match in snippet view article find links to article

common-mode rejection ratios and so will often introduce cable-borne mains hum and other common-mode interference, such as switch clicks, into sensitive

Integrating ADC (4,994 words) [view diff] exact match in snippet view article find links to article

chosen to be a multiple of the period of the mains frequency, to suppress mains hum. There are limits to the maximum resolution of the dual-slope integrating