Mario Camarena

You can see this effect in his pedal board at 4:28

This tuner can be seen at 6:05 into the video as it shows a full shot of Mario's pedal board.

Mario Camarena uses it thoughout the entire playthrough for "Sleepy Tea" on YouTube, it looks to have the same specs as a Ibanez 2402 including coil tap.

In a detailed Rig Rundown video hosted by Premier Guitar on YouTube, guitarist and composer Mario Camarena is shown utilizing a Sennheiser e906 microphone to record his Matchless Lightning amplifier. Precise moments at approximately 3:06 and again at 3:18 provide a clear view of the setup, confirming Camarena's choice of gear for capturing his distinctive sound. This evidence is part of an extensive overview of the equipment used by the members of Chon during their performance in Nashville, as documented in the "Rig Rundown - Chon" segment by Premier Guitar.

In a video originally uploaded to Instagram, Mario Camarena is shown using the Meris Ottobit Jr pedal while performing the song "Gift." This proof is supported by a YouTube short shared by Kaonashi, which cites the original source from Mario's Instagram account @guitarrmar.

In a YouTube compilation video titled "The rarest clips of Chon I could find Part 4 | + Bonus Clips!!" by Tman, Mario Camarena is shown using an Ibanez Talman TM1730AHM, identifiable by its maple neck and SSS Strat configuration.

In a video titled "Mario camarena and erick hansel play pitch dark", Mario Camarena is visibly using a Yamaha THR10C Classic Combo Modeling Combo Amp

In the video titled "Mario Camarena and Erick Hansel from CHON classical/acoustic guitar compilation" by Kaonashi on YouTube, Mario Camarena can be seen playing the Art & Lutherie Ami Nylon Cedar guitar at timestamps 0:46, 1:23, and 3:11. All clips are sourced from Mario's Instagram account, guitarrmar.

You can see the THR5 in the background during the duration of the video, implying that Mario Camarena uses it since he owns it. You can tell by the seven knobs and the color + pattern of the amp that it's the THR5 and not any other amp from that line.