- Electronics Projects
- 1.5v to 220v AC simple inverter
- Build Simple AM Radio receiver at home
- Simple Uninterruptible Power Supply (UPS) Circuits
- Single Transistor Amplifier Circuit
- 3.7v Lithium Battery Level Indicator
- LED Chaser using transistors
- Electronics Projects for Beginners
- Simple Latch Circuit Using Transistors
- DC to AC Power Converter circuit feature working
- Fire Alarm Circuit using Transistor
- Two Transistor Amplifier
- Laser Security System
- Music Operating Dancing LEDs light
- Volts Booster Circuit Using Ferrite ore transformer
- Touch switch circuit using Transistor
- Two transistor FM transmitter project
- LED Flasher Using Timer IC 555
- DC Voltage Power Supply Using The LM317
- Electronic Mosquito Repellent Circuit
- Light Dimmer Circuit 1000 Watts Using BT139
- Non-Contact Voltage Detector by using transistor
- 4 volts simple inverter project: explanation
- Flashing Police Lights Circuit
- Light Dependent Resistor, its types and applications
- 100 watts inverter circuit working and applications
- Stereo Audio Amplifier 5W Circuit using TEA 2025 IC
- Small High Volts using 2Sc 1815 transistor
- Electronic Doorbell Circuit using a 555 and CD4017
- Touch On Touch Off Switch Circuit Using 555 timer
- LM386 Audio Amplifier Circuit
- IC 4440 Amplifier Circuit
- Neon Lamp Circuits Working and Application
- Low Power Audio Amplifier Using integrated circuit
- Voltage Regulator Circuits using Transistor and Zener Diode
- Water Level Indicator Circuit Using Transistor
- LED Chaser using CD4017 IC
- Motion Sensor Light Switch
- Melody Generator Using IC um66
- Water Level Indicator Using IC
- Led Light to 220v AC
- LiFi Data Transfer System, WiFi vs LiFi
- How to Connect a CAR Battery | Polarity Checker
- Voltage Level Indicator Circuit
- Security Alarm Using PIR Sensor
- Battery Level Indicator Using LM 3914
- Single Transistor FM Transmitter circuit
- Different types of Capacitor
- Light Emitting Diode (LED) Types of LEDs
- Different Types of Relays
- Piezo buzzer features equivalent
- Clap Switch : Circuit and Its Working
- Different Types of diode, working and features
- PC817 Optocoupler Pinout, Equivalent, Features and applications
Single Transistor Amplifier Circuit
This article is about Single Transistor Amplifier Circuits. An audio amplifier is a device that multiplies an applied input signal amplitude to a level that may be much higher than the input signal. The input is given in the form of audio or music. The amplifiers are classified into classes like class A, class B, class AB, class C, and class D. Here we are going to discuss the first type of amplifier i.e. class A amplifier, and also learn how to build a single transistor amplifier circuit class A.
Amplifiers are generally very efficient because these amplifiers conduct only during the presence of an input signal and they only boost input signals. Single transistor amplifiers are very low-power testosterone cypionate for sale amplifiers and consume very low energy even a single battery of low amperes can be used to run it for many hours.
We want to make clear these types of amplifiers are very easy to build but the quality of the mini amplifier circuit is not very good.
Single transistor amplifiers also known as The common emitter amplifier is widely used due to the very easy circuit to design. A simple single-transistor amplifier dramatically boosts audio input to output.
Components required For Single Transistor Amplifier Circuit
- Transistor 1 any NPN type
- A resistor 4.7k
- Speaker 3w 4 ohm
- capacitor 10uf 16v
Single Transistor Amplifier Circuit circuit diagram
Calculations
Vout = R2 * R1 + R2 * Vin
Re-arrange formula
R1 = R2(Vin * Vout − 1)
Here the speaker is R2, which is 8Ω, Volts in (VIN) is 5V and Vout is 2.83V. So alternate the values and we have:
R1 = 8(52.83 − 1)
12 volts Amplifier Circuit using a single transistor
The given below circuit diagram is perfect for 12 volts. The quality and output of this circuit is much better than the circuit given above for 4 volts. In this way, you can change testosterone undecanoate 250 speakers as well as resistors according to the formula.
12 volts Amplifier circuit diagram
Given below circuit diagram is 12 volts single transistor amplifier circuit.
9 volts amplifier Circuit Diagram
The given below circuit diagram is the calculated form of a single transistor amplifier for 9 volts battery. It is also low power and low-consuming energy amplifier.
