Headphones Amplifier
This compact headphone amplifier provides clear and low-distortion audio output, along with volume and balance control for precise listening adjustments. It is ideal for driving standard headphones from line-level audio sources.
Circuit Details
- Transistor Used: BC549C — a low-noise NPN transistor suitable for preamplifier stages.
- Volume Control: Adjustable potentiometer to set overall output level.
- Balance Control: Allows independent adjustment of left and right channels to achieve proper stereo balance.
- Designed for high input impedance and low output impedance, compatible with standard headphones.
Construction Notes
- Use low-noise BC549C transistors for the preamplifier stages to ensure clean audio.
- Keep input wiring short and shielded to prevent hum and interference.
- Use quality potentiometers for smooth and reliable volume and balance adjustment.
- Provide a small regulated power supply or battery source suitable for headphone operation.
Key Features
- Low-noise headphone amplification
- Adjustable volume and stereo balance
- Compact and simple design using BC549C transistors
- Compatible with standard line-level audio sources
