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Variable Audio Attenuator Circuits | Products & Suppliers ...
https://www.globalspec.com/industrial-directory/variable_audio_attenuator_circuits
Description: Low Distortion: 0.05% Wide Band: 10 Hz to 1 MHz 50 dB Step Attenuator 20 dB Variable Attenuator Rear Panel Sync Input The Leader LAG-120B precision wide band audio sine/square wave generator is used for testing and servicing audio equipment. Device Type: Generator; Generator Type: Function, Signal; Maximum Frequency Range: 1 MHz
Variable Attenuator – Simple Circuit Diagram
https://www.simplecircuitdiagram.com/545-variable-attenuator/
Variable Attenuator. February 2, 2010 Adam. This is a variable attenuator circuit. This circuit can be used to reduce the power or amplitude of a signal without appreciably distorting its waveform. Here is the circuit : This circuit uses 2N3685 as a voltage variable resistor with an RDS (on) of 800 Ohm. Using 2N3685 JFET, this circuit will provide excellent electronic gain control …
Audio Volume Control Attenuator with IR Control
http://electronics-diy.com/audio-volume-control-attenuator-with-ir-control.php
The circuit contains only 7 resistors and 4 switches, all 4 switches might simultaneously carry audio current. Note the varying input resistance and the almost constant output resistance. A calculation tool to design your own staged attenuator circuits like this one is on this page. Intermediate circuit: at most 2 switches closed
How to Build a Simple Attenuator Circuit
http://www.learningaboutelectronics.com/Articles/Attenuator-circuit.php
Attenuator circuits are very useful for whenever we need to decrease the strength of signals. Think of applications such as volume control. If the music is too loud, then we need to attenuate them in order to get less volume. The music comes to our ears through audio signals. We then would need an attenuator to decrease the level of these audio signals, which translates into …
Attenuators | Amplifiers and Active Devices | Electronics ...
https://www.allaboutcircuits.com/textbook/semiconductors/chpt-1/attenuators/
Summary: Attenuators. An attenuator reduces an input signal to a lower level. The amount of attenuation is specified in decibels (dB). Decibel values are additive for cascaded attenuator sections. dB from power ratio: dB = 10 log10(PI / PO) dB from voltage ratio: dB = 20 log10(VI / VO) T and Π section attenuators are the most common circuit configurations.
Homemade RCA Attenuator : 5 Steps (with Pictures ...
https://www.instructables.com/Homemade-RCA-Attenuator/
Homemade RCA Attenuator: This project arose from the fact that I had too much gain in my audio system, and I needed a practical solution without modifying the PCB circuit. The problem can be solved using an RCA (in-line) attenuator, but since a new one can be quite expensiv…
Muting Transistor Attenuator Circuits and the 2SC2878 ...
https://www.electroschematics.com/muting-transistor-attenuator-circuits-2sc2878/
Applications for muting circuits. Applications for muting circuits abound. Included are synthesizers, audio amplifiers, pre-amplifiers, audio mixers and audio line & level equipment (both consumer and professional). In amplifiers and pre-amplifiers, the muting circuit is intended to prevent the popping of loudspeakers when power is applied.
0 - 44 dB RF attenuator Schematic Circuit Diagram
https://circuit-diagramz.com/0-44-db-rf-attenuator-schematic-circuit-diagram/
The RF 2420 is an IC built using gallium-arsenide (GaAs) technology, which works in the frequency range between 1 MHz and 950 MHz. It can thus be used as an attenuator for cable television signals, for example. The attenuation can be set between 0 and 44 dB in 2-dB steps. An insertion loss of 4 dB must also be taken into account.
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