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Audio Optocouplers - Learn About Electronics
https://www.learnabout-electronics.org/Semiconductors/opto_53.php
Basic Audio Optocoupler. The circuit shown in Fig. 5.3.4, adapted from a design in Newnes Electronic Circuits Pocket Book by Ray Marston (ISBN 10:1-4832-9192-8) uses the 4N25 connected as a phototransistor to pass audio signals whilst isolating the input and output circuits. An LM324 op amp is used here to drive the LED input of the 4N25.
G15396 - Audio Opto Coupler - Electronic Goldmine
https://www.goldmine-elec-products.com/prodinfo.asp?number=G15396
Detailed Description Tiny audio optocoupler is about the size of a pencil eraser and has 4 leads. These are used extensively in audio compressors, audio level controls, audio limiters, expanders/noise gates, guitar tremolo effects, guitar amplifiers and music effect boxes.
Optocoupler Circuits | Nuts & Volts Magazine
https://www.nutsvolts.com/magazine/article/optocoupler-circuits
An optocoupler type with a typical CTR value of 60% may, for example, in fact have a true value in the range of 30% to 90% in an individual device. OTHER PARAMETERS Other important optocoupler parameters include the following. ISOLATION VOLTAGE.
Audio Optocoupler? | All About Circuits
https://forum.allaboutcircuits.com/threads/audio-optocoupler.102434/
Optocouplers can be a bit slow - maybe even for audio frequencies, so worth checking that detail on the data sheet before going ahead. Photo diode couplers are faster than photo transistor ones. If all you need is speech bandwidth, you shouldn't have much trouble. AnalogKid Joined Aug 1, 2013 9,484 Oct 16, 2014 #11
Optocouplers Archives - Xvive Audio
https://xvive.com/audio/category/optocouplers/
Optocouplers. Xvive optocouplers are available by special order only, so please contact us directly for pricing and order information.
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