Without IC 20 levels BAR graph LE VU METER BC547 or TUN

I show you how to make Without IC 20 levels BAR graph LE VU METER BC547 or TUN (without Integrated Circuit).

In this video I use BC547 Transistors. You can use any other TUN (Transistor Universal NPN), but you have pay attention into the Transistor pins (Emitter Base Collector).

- For the genuine BC547 NPN Transistor pins structure: pin 1 is Collector, pin 2 is Base, pin 3 is Emitter, (CBE).
- For the genuine A1015 PNP Transistor pins structure: pin 1 is Emitter, pin 2 is Collector, pin 3 is Base, (ECB).
- For the genuine C1815 or C945 NPN Transistor pins structure: pin 1 is Emitter, pin 2 is Collector, pin 3 is Base, (ECB).
- For the genuine FCS9013 (C9013) or FCS9014 (C9014) NPN Transistor pins structure: pin 1 is Emitter, pin 2 is Base, pin 3 is Collector, (EBC).

All video list: https://www.youtube.com/moristolekka/videos

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Видео Without IC 20 levels BAR graph LE VU METER BC547 or TUN канала Moristo Lekka Electronic