Audio
2 x 3W Stereo Audio Amplifier with IC BA5406
This is 2 x 3W stereo audio amplifier based on IC power BA5406. This circuit which will give you 3W…
2x1W Stereo Amplifier with IC KA2209
This is 2x1W stereo amplifier circuit based on single IC KA2209. IC KA2209 is an equivalent IC to the TDA2822,…
1W Stereo Audio Amplifier using LM386N
This is 1W stereo audio amplifier with LM386N. The output power is 1 watt for each channel, so it should…
1W Audio Amplifier with TDA7052
This is the circuit diagram of 1W audio amplifier which use TDA7052 as the main component and other 5 pieces…
2x90W Stereo Tube Power Amplifier with EL34
This document is the manual of 2x90W Stereo Tube Power Amplifier with EL34, model K4040 by Velleman. The document in…
100W Audio Amplifier with Transistor BDW83D/BDW84D
Here is the circuit diagram of 100W audio amplifier which using power transistor BDW83D and BDW84D for the final amplification.…
300-2500Hz Audio Bandpass Filter
This is an audio bandpass filter circuit which will filtering the audio frequency from 300Hz to 2500Hz.. The lower and…
Electronic Buzzer with IC timer NE555
This easy electronic buzzer circuit built based on timer works for gaining the frequency. The IC timer NE 555 used…
Low Noise Portable Mic Preamp
This is the circuit diagram of portable mic preamp. This circuit consumes low current supply (about 2mA), so will have…
HiFi Audio Pre-amp
This is a HiFi pre-amplifier circuit diagram with low noise output. Very wide range frequency from about 10Hz until up…