How to build VU Meter 3 - circuit diagram
A very simple circuit of indication of level, with 10 Led. Is used the circuit of half-wave rectification of precision round the IC2, with gain one. With switch S1, we can select the indication of Led. The level of entry is 60 mV-1.25 V.
- D11-12=1N 4148
- C1=10uF 25V
- C2=1uF 25V
- S1= mini switch