150 Watt Hi-Fi Audio Power Amplifier PCB Board (NPN Output, Bare PCB)
This PCB is designed for building a mono audio power amplifier using NPN output transistors. Output performance depends on components used and assembly quality.
Output Power:
Maximum dynamic output power: up to 150 W (depends on supply voltage, load, components, and heat dissipation)
Performance:
Total Harmonic Distortion (THD): approximately 0.01% at 60 W output (depends on components and build quality)
Working Voltage:
Dual supply: ±18 V to ±35 V DC
Recommended transformer: 18-0-18 VAC to 25-0-25 VAC (step-down)
Compatible Output Transistors:
2SC5200, TTC5200
2N3055, 2N3773
NJW0281, TIP35C
Speaker Compatibility:
Supports 4 Ω and 8 Ω speaker loads
Suitable for speakers rated from 50 W to 200 W
Construction:
Designed for through-hole components
No SMD components required
Components are commonly available
Configuration:
Bare PCB (components not included)
Requires proper heat sinking, component selection, and assembly
Final performance depends on build quality and power supply design
Included Support Material:
Circuit diagram provided
Bill of Materials (BOM) included
Basic assembly and connection instructions included
Manufacturing:
PCB manufactured in India
Intended Use:
Audio amplifier construction for home audio systems
Subwoofer and full-range speaker amplifier projects
Musical instrument amplification (e.g., guitar and similar audio sources)
