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DIY Lightspeed Attenuator - DIY AUDIO PROJECTS
https://diyaudioprojects.com/Solid/DIY-Lightspeed-Passive-Attenuator/
Figure 2: Lightspeed Passive Attenuator Schematic. The following will required to build a Lightspeed Attenuator. 5 VDC power supply. 100k dual log or linear potentiometer (quality does not matter as this only controls voltage and not the audio signal) Four 100 Ohm 1/4W resistors; Two 1k to 5k multi-turn potentiometers
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 ...
RelaiXedPassive -- audio attenuator - van Eijndhoven
http://www.vaneijndhoven.net/jos/relaixedpassive/
RelaiXedPassive -- audio attenuator. Introduction. This RelaixedPassive is the latest of my RelaiXed designs. It is an audio volume control and input channel selector with a minimalistic passive design: there are are no active parts in the audio path: no transistors, opamps, tubes.
Audio Volume Control Attenuator with IR ... - Electronics DIY
http://electronics-diy.com/audio-volume-control-attenuator-with-ir-control.php
Compact and simple circuit: just 6 tiny relays implement a 64-step logarithmic stereo attenuator. The 64 steps of 1.0dB together span a 63dB audio attenuation range. By avoiding any active electronics, a very clean and open sound is maintained. An IR receiver allows remote control.
How to Build a Simple Attenuator Circuit
http://www.learningaboutelectronics.com/Articles/Attenuator-circuit.php
Attenuator Circuit Schematic Diagram The circuit we will build is shown below: Here we are using the potentiometer as an attenuator for the buzzer sounds. Because this is for audio sounds, the best potentiometer to use is a log taper or audio potentiometer.
Audio Amplifier Circuit - UC Santa Barbara
https://web.ece.ucsb.edu/Faculty/rodwell/Classes/ece2c/labs/Lab%201a%20-%202C%202007.pdf
Figure 1-5 – LM386 internal circuit and 8-pin DIP pin assignments. This is an old chip that has been a popular choice for low-power audio applications for many years. There are many other audio amp ICs on the market (LM380 and LM383 are similar but higher-power amps from National), but the LM386 is sufficient for our purposes.
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…
Audio Attenuator circuit - Page 1 - EEVblog
https://eevblog.com/forum/beginners/audio-attenuator-circuit/
Re: Audio Attenuator circuit. Yes. The audio signals are going through a fixed attenuator where roughly 20% of the voltage goes to the TV. Apparently the source puts out a pretty "hot" audio signal and the circuit knocks it down to a …
Muting Transistor Attenuator Circuits and the 2SC2878 ...
https://www.electroschematics.com/muting-transistor-attenuator-circuits-2sc2878/
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.
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