2SC5200 2SA1943 300W Mono DC +-20-90V Class AB 8OHM audio amplifier

300W class AB audio amplifier board for 8 ohms.

NOTE: requires a symmetrical DC power supply; a standard power supply will not work.

Specifications:

• mono power: 300W at 8Ω impedance
• power supply: symmetrical DC power supply +-20-90V
• amplifier transistors: Toshiba 2SC5200 2SA1943
• Dimensions: 150 x 75 x 45 mm.

The transistors require a heat sink and an insulator between the heat sink and the transistor.