25 Watt Hi-Fi Audio Amplifier

This kit contains the essential components needed to build a high fidelity amplifier module using the National Semiconductor LM1875 IC. With the addition of a handful of parts and a suitable power supply, this module will deliver 25W RMS into 8 ohms @ 1% THD.

Specifications:

L: 2" W: 2-1/8" H: 3/4"
Requires external -25 and +25 VDC Power Supply
(See K114)
Up to 30W output power into 8 ohms
Typical THD of 0.015% @ 1kHz, 20W output
Short circuit protection
94dB supply rejection ratio
Built-in thermal protection
See K50.pdf for complete details, including schematic and theory of operation.

K50 - 25 WATT HIFI AUDIO AMPLIFIER KIT