
MK484 SHORTWAVE RADIO
... metres or so mounted as high as possible. For the most part this gives adequate results. ...
... metres or so mounted as high as possible. For the most part this gives adequate results. ...
General Notes Quad ESL57 by Ron Best
... before serious music listening commences. Original Quad 57 panels may require as much as an hour to reach full charge: this is rarely a fault condition (what we call a 'lazy' panel) and is a known and accepted parameter in the long-term performance of this type of panel. New panels will tend to char ...
... before serious music listening commences. Original Quad 57 panels may require as much as an hour to reach full charge: this is rarely a fault condition (what we call a 'lazy' panel) and is a known and accepted parameter in the long-term performance of this type of panel. New panels will tend to char ...
owners manual ma2150
... as well as feel the music the way the artist intended. These handcrafted amplifiers feature full differential “front ends” based upon a true instrumentation amplifier topology. Tube Drivers utilize only the highest quality Svetlana tubes in our unique configurations. All of the internal amplifier st ...
... as well as feel the music the way the artist intended. These handcrafted amplifiers feature full differential “front ends” based upon a true instrumentation amplifier topology. Tube Drivers utilize only the highest quality Svetlana tubes in our unique configurations. All of the internal amplifier st ...
Sound Part 3: All That Noise
... The pitch of a sound is relatively easy to understand; it's simply controlled by the frequency of the sound, which is how many cycles the sound wave makes per second. Similarly, the volume of a sound is also pretty easy to understand. But there's a fundamental characteristic of sound that's perhaps ...
... The pitch of a sound is relatively easy to understand; it's simply controlled by the frequency of the sound, which is how many cycles the sound wave makes per second. Similarly, the volume of a sound is also pretty easy to understand. But there's a fundamental characteristic of sound that's perhaps ...
Experiment 1 - Electrical and Computer Engineering
... Two matched transistors of the same polarity (or, less often, Vacuum tubes) can be arranged to supply opposite halves of each cycle without the need for an output transformer, although in doing so the driver circuit often is asymmetric and one transistor will be used in a Common-emitter configuratio ...
... Two matched transistors of the same polarity (or, less often, Vacuum tubes) can be arranged to supply opposite halves of each cycle without the need for an output transformer, although in doing so the driver circuit often is asymmetric and one transistor will be used in a Common-emitter configuratio ...
AMPLIFIER MANUAL
... All of the Xe.Tune™ controls for the crossovers, sensitivity, and bass boost are located on the top of the amplifier. All crossovers are ultra precise LinkwitzRiley 24dB per octave and a separate high and low pass filter is available for each set of channels. This means that any standalone Xenon amp ...
... All of the Xe.Tune™ controls for the crossovers, sensitivity, and bass boost are located on the top of the amplifier. All crossovers are ultra precise LinkwitzRiley 24dB per octave and a separate high and low pass filter is available for each set of channels. This means that any standalone Xenon amp ...
CARVIN ENGINEERING DATA
... The BX1600 is capable of three different power amp modes, each with different advantages: 1. DUAL MONO mode (standard) Both the X-OVER switch and the rear BRIDGE switch are set to “OFF”. Each power amp receives the same mono signal (unless effects are used in the AMP INSERTS). Speakers can be connec ...
... The BX1600 is capable of three different power amp modes, each with different advantages: 1. DUAL MONO mode (standard) Both the X-OVER switch and the rear BRIDGE switch are set to “OFF”. Each power amp receives the same mono signal (unless effects are used in the AMP INSERTS). Speakers can be connec ...
Supercone
... emergency dump situations. As the operating current is about 3000A, the stored energy of the magnet is about 10MJ. The power supply system will provide an l0V dc, 3000A current. Besides the power supply, this system also includes a voltage filter, a high-current buswork, a magnet discharge resistor, ...
... emergency dump situations. As the operating current is about 3000A, the stored energy of the magnet is about 10MJ. The power supply system will provide an l0V dc, 3000A current. Besides the power supply, this system also includes a voltage filter, a high-current buswork, a magnet discharge resistor, ...
412 Laboratory_1
... a frequency of 1 KHz on the input to the amplifier. Adjust the magnitude of the square wave such that it is 200 mV peak-to-peak, with a D.C. component of 0V. 3. Using an oscilloscope, measure and record the output of this amplifier. Q1: Based on this measured result, what is the apparent open-circui ...
... a frequency of 1 KHz on the input to the amplifier. Adjust the magnitude of the square wave such that it is 200 mV peak-to-peak, with a D.C. component of 0V. 3. Using an oscilloscope, measure and record the output of this amplifier. Q1: Based on this measured result, what is the apparent open-circui ...
Selection of gate drivers
... I.e.: SEMiX404GB12E4 The following values can be found in the driver’s data sheet: RG = 3Ω (external gate resistor; can be modified by the customer) RG_int = 1,88 Ω (internal gate resistor, cannot be modified by the customer) ...
... I.e.: SEMiX404GB12E4 The following values can be found in the driver’s data sheet: RG = 3Ω (external gate resistor; can be modified by the customer) RG_int = 1,88 Ω (internal gate resistor, cannot be modified by the customer) ...
AN1229
... simple two section balun (1:1 balun in cascade with a 4:1 balun transformer) is used to transform the unbalanced 50 Ω to a balanced 12.5 Ω (2 x 6.25 Ω) which is very near to the total optimum load resistance. The first section, a 5" long - 50 Ω flexible coaxial cable, and the second section, two 5" ...
... simple two section balun (1:1 balun in cascade with a 4:1 balun transformer) is used to transform the unbalanced 50 Ω to a balanced 12.5 Ω (2 x 6.25 Ω) which is very near to the total optimum load resistance. The first section, a 5" long - 50 Ω flexible coaxial cable, and the second section, two 5" ...
General
... Any two from easier to store, high quality sound, no wear and tear of the disc, very little background noise (b) A tape cassette can be used to record your own voice and then played back. However the recording is not immediately recognisable as your own voice. Why is this? We are hearing from the vi ...
... Any two from easier to store, high quality sound, no wear and tear of the disc, very little background noise (b) A tape cassette can be used to record your own voice and then played back. However the recording is not immediately recognisable as your own voice. Why is this? We are hearing from the vi ...
MAX4361/MAX4362/MAX4363 ADSL Drivers/Receivers for Customer Premise Equipment General Description
... +12.5dBm and maintain the best SFDR. High-quality capacitors with low equivalent series resistance (ESR) such as multilayer ceramic capacitors (MLCCs) should be used to minimize supply voltage ripple and power dissipation. A larger capacitor located in proximity to the MAX4361/MAX4362/MAX4363 improv ...
... +12.5dBm and maintain the best SFDR. High-quality capacitors with low equivalent series resistance (ESR) such as multilayer ceramic capacitors (MLCCs) should be used to minimize supply voltage ripple and power dissipation. A larger capacitor located in proximity to the MAX4361/MAX4362/MAX4363 improv ...
Microphones - Harris Ac Music
... Because a ribbon mic has an extremely thin, delicate element, it is capable of capturing fast transients. Ribbons mics have a wide dynamic range, and are capable of handling high SPLs at high frequencies. (Give them a try on brass or percussion.) These mics are bidirectional by design, because the r ...
... Because a ribbon mic has an extremely thin, delicate element, it is capable of capturing fast transients. Ribbons mics have a wide dynamic range, and are capable of handling high SPLs at high frequencies. (Give them a try on brass or percussion.) These mics are bidirectional by design, because the r ...
Model SM89 User Guide
... microphone with characteristics especially suitable for distant pickup required in location film and television production. The microphone can also be used for theater sound reinforcement, spot news coverage, or wildlife recording; it will discriminate at a distance in favor of desired dialogue or e ...
... microphone with characteristics especially suitable for distant pickup required in location film and television production. The microphone can also be used for theater sound reinforcement, spot news coverage, or wildlife recording; it will discriminate at a distance in favor of desired dialogue or e ...
OWNER`S MANUAL - Incriminator Audio
... The ground connection must be made to the vehicle’s chassis and should be kept as short as possible, while accessing a solid piece of sheet metal in the vehicle. The surface should be sanded at the contact point to clean rust, paint or grime so a metal-to metal connection between the chassis and the ...
... The ground connection must be made to the vehicle’s chassis and should be kept as short as possible, while accessing a solid piece of sheet metal in the vehicle. The surface should be sanded at the contact point to clean rust, paint or grime so a metal-to metal connection between the chassis and the ...
Piezoelectric Sound Components
... Introduction Murata Electronics’ piezoelectric sound components (piezo alarms) are designed for applications requiring a highly reliable acoustic alarm or audible tone signal. Their reliability extends from the fact that they are solid state construction so they have very few moving parts. These dev ...
... Introduction Murata Electronics’ piezoelectric sound components (piezo alarms) are designed for applications requiring a highly reliable acoustic alarm or audible tone signal. Their reliability extends from the fact that they are solid state construction so they have very few moving parts. These dev ...
MUS:4250 COMPOSITION: ELECTRONIC MEDIA I Fall 2016 Basic
... a. Condenser microphones require external power to work. They draw this power from a variety of different ways. i. Phantom power can be provided from a mixer or recording device. There is usually a button or switch that turns the phantom power on and off. The amount of power provided is 48 volts. ii ...
... a. Condenser microphones require external power to work. They draw this power from a variety of different ways. i. Phantom power can be provided from a mixer or recording device. There is usually a button or switch that turns the phantom power on and off. The amount of power provided is 48 volts. ii ...
vs Guiderev3
... Custom Made Drivers - KRK is renowned for designing high performance studio monitor drivers. Your V Series 2 is no exception. A woven Kevlar® LF driver was custom-designed specifically for each model. Kevlar® is one of the strongest, lightest, most rigid materials that can be used in modern speaker ...
... Custom Made Drivers - KRK is renowned for designing high performance studio monitor drivers. Your V Series 2 is no exception. A woven Kevlar® LF driver was custom-designed specifically for each model. Kevlar® is one of the strongest, lightest, most rigid materials that can be used in modern speaker ...
For Constant Current Drivers - Universal Lighting Technologies
... Among the first drivers to be used in fixtures were 150W Drivers. 150W Drivers are ideal replacements for first generation outdoor drivers. EVERLINE’s 150W Constant Current Drivers are available in both UNV (120V-277V), and UNV (347V-480V) voltages, and with a variety of output current options. Univ ...
... Among the first drivers to be used in fixtures were 150W Drivers. 150W Drivers are ideal replacements for first generation outdoor drivers. EVERLINE’s 150W Constant Current Drivers are available in both UNV (120V-277V), and UNV (347V-480V) voltages, and with a variety of output current options. Univ ...
UNISONIC TECHNOLOGIES CO., LTD TDA2030A
... of the crossover filters (see Fig. 2). As an example, a 100W three-way system with crossover frequencies of 400Hz and 3KHz would require 50W for the woofer, 35W for the midrange unit and 15W for the tweeter. Both active and passive filters can be used for crossovers but active filters cost significa ...
... of the crossover filters (see Fig. 2). As an example, a 100W three-way system with crossover frequencies of 400Hz and 3KHz would require 50W for the woofer, 35W for the midrange unit and 15W for the tweeter. Both active and passive filters can be used for crossovers but active filters cost significa ...
Linear High-Efficiency Microwave Power Amplifiers Using Bandpass Delta-Sigma Modulators
... amplifier, the signal undergoes bandpass filtering (within the amplifier output matching structure). Fig. 3 schematically illustrates one of several possible implementations of the switching-mode amplifier for use in a NPN-only technology. In the configuration shown, the voltage across the transisto ...
... amplifier, the signal undergoes bandpass filtering (within the amplifier output matching structure). Fig. 3 schematically illustrates one of several possible implementations of the switching-mode amplifier for use in a NPN-only technology. In the configuration shown, the voltage across the transisto ...
Powerpoint notes.
... The speed of sound is different in different media (air and water). When a sound moves from one medium to another, part of the sound is transmitted, part is reflected back! ...
... The speed of sound is different in different media (air and water). When a sound moves from one medium to another, part of the sound is transmitted, part is reflected back! ...
Optical Theremin Design Review - Sites@PSU
... The photodiodes detect light and generate leakage currents as the levels change. A trans impedance amplifier produces voltages from these currents. The MyDAQ samples the currents and feeds them into a program that generates an audio signal. This program gives the user control over the frequency rang ...
... The photodiodes detect light and generate leakage currents as the levels change. A trans impedance amplifier produces voltages from these currents. The MyDAQ samples the currents and feeds them into a program that generates an audio signal. This program gives the user control over the frequency rang ...
by emeh henry nnaemeka ee/2008/293
... gongs to call on people’s attention before passing on the information, a rimmed cattle horn was also used to serve as a microphone (Ezeorah Chidiebere; 2009). 2.2 MODERN DAY MEDIUM APPROACH Recently it has been witnessed that the advent of a durable, wider coverage and more reliable means that could ...
... gongs to call on people’s attention before passing on the information, a rimmed cattle horn was also used to serve as a microphone (Ezeorah Chidiebere; 2009). 2.2 MODERN DAY MEDIUM APPROACH Recently it has been witnessed that the advent of a durable, wider coverage and more reliable means that could ...
Loudspeaker

A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound. The first primitive loudspeakers were invented during the development of telephone systems in the late 1800s, but electronic amplification by vacuum tube beginning around 1912 made loudspeakers truly practical. By the 1920s they were used in radios, phonographs, public address systems and theatre sound systems for talking motion pictures.The most widely-used type of speaker today is the dynamic speaker, invented in 1925 by Edward W. Kellogg and Chester W. Rice. The dynamic speaker operates on the same basic principle as a dynamic microphone, but in reverse, to produce sound from an electrical signal. When an alternating current electrical audio signal input is applied through the voice coil, a coil of wire suspended in a circular gap between the poles of a permanent magnet, the coil is forced to move rapidly back and forth due to Faraday's law of induction, which causes a diaphragm (usually conically shaped) attached to the coil to move back and forth, pushing on the air to create sound waves. Besides this most common method, there are several alternative technologies that can be used to convert an electrical signal into sound. The sound source (e.g., a sound recording or a microphone) must be amplified with an amplifier before the signal is sent to the speaker.Speakers are typically housed in an enclosure which is often a rectangular or square box made of wood or sometimes plastic. Where high fidelity reproduction of sound is required, multiple loudspeakers may be mounted in the same enclosure, each reproducing a part of the audible frequency range (picture at right). In this case the individual speakers are referred to as ""drivers"" and the entire unit is called a loudspeaker. Miniature loudspeakers are found in devices such as radio and TV receivers, and many forms of music players. Larger loudspeaker systems are used for music, sound reinforcement in theatres and concerts, and in public address systems.