Audio Clipping Peak Indicator using IC TL062

This Simple Audio Clipping Peak Indicator circuit was expected to distinguish clipping in preamp stages, mixers, equalizer, amplifiers and so on. It can be utilized as a different, convenient unit, to signal by using some LEDs when the output wave form a specific sound stage is "cutting" i.e. is coming to the onset of its maximum permitted peak voltage value before an over-load is happening. This will help the operator in avoiding extreme twisting or distortion in the audio to be created through the sound hardware chain, as if it were shielding your amplifier equipments and speakers from over-loading.

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How to make a 2 Watt audio amplifier from discrete components

A 2 Watt audio amplifier made from discrete components.

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How to make your own simple 5pf Capacitor

It is surely possible to make your own capacitors.At least those with small values, like up to 5-100pF

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Simple 150 Watt amplifier circuit using transistors

This is the cheapest 150 Watt amplifier circuit you can make,I think.Based on two Darlington power transistors TIP 142 and TIP 147 ,this circuit can deliver a blasting 150 W Rms to a 4 Ohm speaker.Enough for you to get rocked?;then try out this.

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A Simple Day Light Sensor Circuit using cheap components like LDR and UM66 IC

This circuit will help you to make a Light Sensitive Morning Alarm circuit using limited components.

The morning light or other light is sensed by an LDR (Light Dependent Resistor) or Photoresistor and it triggers the alarming section. The circuit generates a melodious alarming tone when light falls on it. 

Wire-up the circuit as shown in schematic diagram and place the LDR next to the window pane closer to your bed. Since the LDR is more sensitive to light, so make sure it will not be false triggered. 

The electronic components used in this circuit is cheap, so you can make this at your own home at very low cost and it consumes very less power, hence it ensures long working life.

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Cheapest High power LED driver circuit schematic

There are many other articles on internet with simpler circuits but none of them are cost effective or as cheap as this one.
Using some easy to get cheap components you can make a much better LED driver than you would have thought of.

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Simple and Cheap 100W Inverter Circuit

Inverter is a small circuit which will convert the direct current (DC) to alternating current (AC). The power of a battery is converted in to’ main voltages’ or AC power. This power can be used for electronic appliances like television, mobile phones, computer etc. the main function of the inverter is to convert DC to AC and step-up transformer is used to create main voltages from resulting AC.

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Lead Acid Battery Charger Circuit

To successfully charge a battery, it should be supplied with DC current and not AC. This circuit shows how you can use DC voltage to regulate and finally charge the battery.
Now if you have AC voltage, you can convert it using a rectifier bridge and pass it through filter to obtain DC voltage which can then be used in this circuit to charge the Lead Acid Battery. Car also consists a lead acid battery.

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Bipolar LED Driver Circuit

A Bi color LED is a special type of LED consists of two diodes connected in inverse direction to each other inside a package. A bi color LED generally consists of three terminals- a common pin and two separate pins. 

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Simple audio amplifier using LM386.

The LM386 is an audio amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.

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