Note:
DIY kits, need their own welding,
This is the price of 2 PCS
Features:
1: circuit board for the left and right channel symmetrical design, circuit board size: 100X66X1.6MM,
2; working state: partial class
3: Output power: mono 100W, dual channel 200W:
4: Operating voltage: + - 20V ----- + - 45V
5: Distortion: THD is 0.002% into 1 kilohertz and full power
THD is 0.005% into 10 kilohertz and full power
6: Input interface: Mono signal input:
7: Output interface: Mono speaker output
8: Power mode: dual power mode
Symasym5-3 POWER AMP for foreign diyaudio forum is very well-known line, so far the circuit post traffic is still very active, its full load when the ultra-low distortion, sound quality can be said very good, dual-channel 200W power is very suitable for home Use, suitable for promoting 6.5-inch high-power HI FI speakers, the circuit work in the partial class, no noise and current sound. Production is simple, the circuit is stable and reliable. Voltage feedback, suitable for HIFI players to the machine.
Circuit board main parts specifications:
High power on the tube: NJW0302 / 0281 2 pairs 4PCS output.
Drive tube: ON drive tube king MJE15032 / 33,
Thermocouple: ST BD139
Small signal tube: ON MPSA18 2N5551, 2N5401,
Philips BC556 / BC546