Uploaded July 2017 | Updated September 2026, 2 weeks ago

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My hamburger phone that I use as a buzzer for my apartment's intercom was malfunctioning, so I decided to open it up and try to fix it.

K2411 Datasheet: datasheetcafe.com/k2411-datasheet-pdf-datasheet

HM9102D Datasheet: datasheet-pdf.info/entry/HM9102D

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