Automatic Loudness Control Circuit
To get good audio quality, tone settings must be considered, one of which is good bass and treble tones. For this reason, an automatic loudness … Read more
Automatic shut-off circuit
This alarm circuit is very simple, if triggered once, will keep on sounding until either the battery is drained off or the power is cut-off. … Read more
Burglar Alarm Circuit with CMOS
A burglar alarm operates by opening or closing of an electrical contact. For example, in a house, the doors and windows are pretected by switches … Read more
Simple water level alarm circuit based CMOS
The type of alarm shown in the figure is useful in applications such as monitoring the water level in the bilges of a boat or … Read more
Transistor Power Amplifier Circuit Based 2N3055
This circuit is designed with a simple and low cost. The optimal working voltage for this amplifier is +55 Volts. But the advantages of this … Read more
Audio metronome circuit with led indicator
The metronome circuit of circuit below produces audible ticks from 40 ticks per minute to 400 ticks per minute by variation of one potentiometer. Gates … Read more
1 MHz Crystal Oscillator based CMOS 4011
Many electronic circuits requiring precision control of time use crystal oscillators. A simple crystal oscillator using only one NAND gate based CMOS 4011 shown in … Read more