Audio Line Driver
This circuit functions as an audio line driver, designed to compensate for signal losses over long cables without introducing additional noise. It ensures that audio signals remain clear and strong even when transmitted over extended distances.
Circuit Details
- Preamplifier Output Impedance: 16 Ω
- Transistor Used: BC109C for low-noise amplification
- Provides sufficient current drive to overcome cable capacitance and maintain signal integrity
Construction Notes
- Use quality low-noise BC109C transistors for best performance.
- Keep input and output wiring short and shielded to reduce interference.
- Use appropriate bypass capacitors on the power supply to minimize hum and noise.
- Suitable for driving long audio cables in studio or PA applications.
Key Features
- Compensates signal loss over long cable runs
- Maintains low noise performance
- Simple preamplifier design with 16 Ω output impedance
- Low-cost and easy-to-build line driver solution
