Electronics Help Care electronics circuit diagram Subwoofer amplifier circuit board:
This is a subwoofer amplifier circuit board. This diagram makes only bass for the amplifier. It’s a pre-amplifier diagram. This diagram runs on 12 volts. only positive and negative voltage. It’s a mono diagram. It has two adjustable volumes. One is the volume, another is the bass frequency. mono audio input and mono audio output.
This circuit can be used with any type of amplifier to make only bass output.
Amplifier circuit schematic:
This is the amplifier circuit schematic. 200 watts audio amplifier diagram. It’s a mono audio diagram for an amplifier. Here we can use 50-0-50 voltage and 5 amperes. For stereo needs, a dual diagram. This is an amplifier circuit using 2SC2922 and 2SA1216.
The Diagram is here
This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. If the amplifier has any problem, then this circuit can save our soundbox. Normally, when the transistor makes a short circuit, the voltage comes out from the speaker output line then this circuit protects that voltage. This circuit should not allow any direct voltage to be sent to the speaker. This circuit is very important for protecting the speaker.
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