How to wire a stereo device such as an MP3 player to output a mono signal to feed into Athena. Introduction Instructions
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SeCro 6.35mm (1/4 inches) Male Mono Plug to 3.5mm Male Stereo Audio Jack Cable Laptop -9.8FT [3 Meters] Black : Amazon.in: Computers & Accessories
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Custom Lynx 6.35mm (1/4") Angled Stereo Jack to 2×6.35mm (1/4") Angled Mono Jack Cable - Custom Lynx
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operational amplifier - How could I build a headphone stereo to mono converter? - Electrical Engineering Stack Exchange
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