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Audio Volume Relay Attenuator with IR Control
http://www.vaneijndhoven.net/jos/switchr/design.html
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. The device can learn and store your favorite key codes.
Audio Volume Relay Attenuator with IR Control
http://circuit-zone.com/?electronic_project=92
Audio Volume Relay Attenuator with IR Control Audio Volume Relay Attenuator with IR Control Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it …
Relay-Controlled Volume - The Ultimate Solution for …
https://benchmarkmedia.com/blogs/application_notes/benchmarks-256-step-relay-controlled-attenuator
Benchmark has introduced the new HPA4 headphone/line amplifier with four 256-step relay-controlled attenuators and four 16-step relay-controlled boost amplifiers. Together these form two fully-independent, fully-balanced stereo volume controls. One volume control is dedicated to the line output and one is dedicated to the headphone output.
Relay Attenuator 10k Stereo - allo.com
https://www.allo.com/sparky/relay-attenuator.html
Relay Attenuator for Piano, Piano 2.1, Boss DACs. Nominal value is 10k. Simply plug in above your DAC and then take the output attenuated by relays switching, to thin film 0.1% 25ppm SUSUMU audio grade resistors. Relay Attenuator Measurements and Graph V3_080617 (Excel File)
Elma X4 Audio relay attenuator switch
https://www.don-audio.com/Elma-X4-Audio-relay-attenuator-switch
The X4-Audio switch is a high performance relay volume control attenuator with 24 or 64 positions that incorporates 6 relay driven ladder stages The attenuation is ranging over 64 positions (the 64 positions standard version comes without indexing). The attenuation function can be controlled by the front panel rotary switch or by an IR remote unit.
Audio Volume Relay Attenuator with IR Control ...
https://www.electronicsinfoline.com/pin/5351/
Audio Volume Relay Attenuator with IR Control. Previous Post Next Post. BROWSE. Just 5 tiny relays implement a 32-step logarithmic stereo attenuator. The 32 steps of 1.7dB together span a 54dB attenuator range. Only a single IC controls and drives the circuit. An IR receiver allows remote control. The device can learn and store your favorite ...
Elma Relay Attenuator switch, 2 Channels ... - Fidelity-Audio
https://www.fidelity-audio.com/Elma-Relay-Attenuator-switch-2-Channels-up-to-64-steps_2
The Relay Attenuator (new Version) is an extremely versatile ladder type, 6-stage stereo attenuator with constant input impedance featuring 33 attenuation positions with infinite or 64 positions without infinite. The Relay Attenuator can also set to work as Relay Selector switch.
Audio Volume Control Attenuator with IR Control
https://electronics-diy.com/audio-volume-control-attenuator-with-ir-control.php
The circuit provides both audio volume and input channel selection. A stepwise volume control is implemented with a set of small relays and resistors. In a high-end audio system, a noticable sound improvement over potentiomeneters can be obtained, also over 'audio grade' potentiometers. Clearly, the IR remote control provides convenience over solutions with …
The relay-switched attenuator volume control
https://soundmovements.co.uk/diyaudio/Attenuator.html
relays, according to the value of bit 1 of the volume signal. Results After several weeks of soldering, cursing and plenty of testing, the attenuator now works without a hitch. The relays of course click audibly, even with the lid of the box on, though the fact that four change at once gives the surprising auditory
Click-click! A relay-based attenuator ... - theslowdiyer
https://theslowdiyer.wordpress.com/2014/10/26/click-click-a-relay-based-attenuator/
The attenuator stage itself uses Omron G6K 5V miniature relays and Vishay RN55 resistors. As far as I know there are no substitutes from other manufacturers for the relays (because of the uniform 2.5mm pin spacing), but Reichelt has them for a decent price so even that is manageable.
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