The existence of the peak indicator “” in an device is indispensable. Audio Peak indicator is a simple to detect the peak level of the signal. Audio Peak indicator is built with two transistors and LEDs as an indicator of the peak level detection of signals. The main functions of Audio Peak indicator is to determine the occurrence of the peak level of the audio signal that is more than +4 dB, equivalent to 1.25 V rms. If the received audio signal more than +4 dB was the LEDs on the circuit Audio Peak indicator will light. Audio Peak indicator circuit is mounted on the output of the audio system.
Image Series Audio Peak Indicator
Audio Peak Indicator Component List:
- R1 = 10Kohm
- R2 = 1.2Kohm
- R3 = 220Kohm
- R4-5 = 4.7Kohm
- C1 = 47uF 25V
- C2 = 2.2uF 25V
- Q1-2 = BC550C
- D1 = LED RED
Hopefully be able to form the reference material in the manufacture of Audio Peak Indicator series audio devices in the reader.