- 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
Build Simple AM Radio receiver at home
A small and simple AM Radio project with only 2 transistors. Mediumwave stations can be listened to in your area through this circuit. The variable capacitor (VC1) in parallel with the coil (L1) acts as a tunable resonant circuit. This “tank” circuit can be adjusted at the desired AM frequency.
Components required for Simple AM Radio Receiver Circuit
Following Components are required for this simple AM Radio Circuit. Frequency can be adjusted according to the Component’s powers and formula. Detail about the components is given below.
| Ref Des | Name | Value | Description |
|---|---|---|---|
| C1 | Capacitor | 0.1uf | PF Capacitor |
| C2 | Capacitor | 470pF | PF Capacitor |
| C3 | Capacitor | 10uf | 25v |
| C4 | Capacitor | 10uf | 25v |
| L1 | AIR CORE | 200uH | Air core coil |
| Q1 | Transistor | 2n2222 | NPN |
| Q2 | Transistor | 2n2222 | NPN |
| R1 | Resistor | 1M | 1/4 wats |
| R2 | RESISTOR | 22k | 1/4 wats |
| R3 | RESISTOR | 4.7K | 1/4 wats |
| R4 | RESISTOR | 1K | 1/4 wats |
| VR1 | Variable Resistor | 4.7K | 4.7K to 10K |
| SP | Speaker | 8 Ohm | simple |
Circuit Diagram of Simple AM Radio Receiver
The circuit diagram of a Simple and homemade Am Radio Circuit is given below with total detailed components.
RF component of Simple AM Radio Receiver Circuit
Modulated RF voltage developed through the tuned circuit is given the transistor (Q1) 2n2222 through the coupling capacitor (C1) 0.2uf. After feeding, Q1 amplifies modulated signals and demodulates the signal. In the collector terminal of Q1, the RF component is shorted to ground through the capacitor (C2) 470pf.
Amplification of the Audio and regeneration
In the circuit, Q2 is separate for audio output. At the emitter of Q1 (NPN transistor), a portion of the signal is fed back to L1. The amount of this feedback is adjustable with a variable resistor (VR1). The speaker is connected to the collector of Q2 for the output of amplified singles through C4. The capacitor C3 is charged through Q2 and fed Q1 through Resistor (R1). The voltage through C3 is fed back as an automatic gain control to the base of Q1. This circuit can be used as a final project for electronics students. For more detail, please visit
Application of AM Radio
This AM Radio Circuit can be used for the following purposes.
- Electronics Fun
- Electronics beginner students
- To listen to AM broadcasting
