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arduino - How to make my sound reactive LEDs with Tip31C work? - Electrical Engineering Stack Exchange
![5PCS TIP31C TIP31 TO 220 Bipolar Transistors BJT NPN Gen Pur Power Triode New|transistor bipolar|power bipolar transistorspower transistor - AliExpress 5PCS TIP31C TIP31 TO 220 Bipolar Transistors BJT NPN Gen Pur Power Triode New|transistor bipolar|power bipolar transistorspower transistor - AliExpress](https://ae01.alicdn.com/kf/Sc0b782b6d44b4916961db0b76d225e972/5PCS-TIP31C-TIP31-TO-220-Bipolar-Transistors-BJT-NPN-Gen-Pur-Power-Triode-New.jpg_Q90.jpg_.webp)
5PCS TIP31C TIP31 TO 220 Bipolar Transistors BJT NPN Gen Pur Power Triode New|transistor bipolar|power bipolar transistorspower transistor - AliExpress
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