AMP Preamplifier Amplifier Volume Tone Control Board DIY Set Kits Low/Middle/High Pitch

1、Power supply circuit adopts full bridge rectifier

2、Effectively eliminate the high frequency interference of AC power grid

3、Chip has high conversion rate and strong drive ability

4、Better performance,noise is very small

5、Can not use 12 V battery or DC directly as power supply

Description:

High quality filter power supply. The four pins of rectifier respectively in parallel

connect with decoupling capacitor, which can effectively eliminate the

high frequency interference of AC power grid. Two 2200UF25V electrolytic

capacitor filter the negative power supply, then stabilize voltage with

7815 and 7915 double DC power supply. Now the clutter interference of

power grid is very small and the voltage is quite stable. So the item

has better performance.The

chip has high conversion rate and strong drive ability. The frequency

band is wide and noise is very small.

Features:

1, Power supply circuit adopts full

bridge rectifier.

2, Effectively eliminate the

high frequency interference of AC power grid.

3, Chip has high conversion rate and strong drive ability.

4, Better performance,noise is very small.

5, Can not use 12 V battery or DC directly as power supply.

Specifications:

Working Voltage: AC double 15 V (10 W)

Audio Input: RCA sockets

Audio Output: 3P terminal

Input Voltage: 3P terminal

Size: 110 mm x 54 mm x 22 mm

Package includes:

1 x Pre-amplifier Board DIY Set

Note:

1, The amplifier board can not use 12 V battery or DC directly as power supply. Power supply should be positive and negative double DC power sources, or special AC 12 V transformer power supply.

2, This item need a power amplifier to drive speaker.

3, Please allow 1-3 mm error due to manual measurement. Thanks for your understanding.

4, Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.