transistors - DIY: Led strip synced with music doesn't work - Electrical Engineering Stack Exchange
Di uno scrittore di uomini misteriosi
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I made led strip synced with music using this schematic I used bd241c instade of tip 31. When i connect 5V and single LED it works fine but when I put 12V and LED strip it doesnt work. Can someone
![](https://i.stack.imgur.com/qgQrm.jpg)
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![](https://image.slidesharecdn.com/ce-unit-4telecommunicationsystems-201106135237/85/telecommunication-systems-1-320.jpg?cb=1669232280)
Telecommunication systems
![](https://i.stack.imgur.com/SbpUP.png)
led - I connected two BJT NPN transistors and don't quite
![](https://www.marrs.io/wp-content/uploads/2023/07/inputs_outputs_map_Plan-de-travail-1-copie-2-1024x634.jpg)
marrs
![](https://i.stack.imgur.com/28zgX.jpg)
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![](https://i.stack.imgur.com/vlRaG.jpg)
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![](https://i.stack.imgur.com/1aVnr.png)
led - I connected two BJT NPN transistors and don't quite
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Calaméo - Circuit Cellar Dec 2022 - Issue 389
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