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Learn how to safely test AC powers, switching power supply chips (SMPS), and crystal oscillators using the FNIRSI 2D15P oscilloscope. 🔗 Learn more: https://fnirsi.top/3K1D3fZ $15 USD OFF 🔥Code: 2D15P15 Step-by-step guide: · Switch probe to 10X and set coupling to AC · Connect probe to crystal oscillator for smooth sine wave reading · Test live AC mains safely · Measure SMPS voltage and waveform in DC mode with 16-bit resolution ✅ Perfect for electronics engineers, hobbyists & lab testing. ◉ 3-
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