Electronics Help Care Amplifier circuit diagram This is a 100-watt amplifier circuit board. It’s a mono diagram in bridge mode. It can be used 15-0-15V to 25-0-25V. The TDA7294 is utilized in this configuration. For stereo needs to be a dual circuit.
Diagram
2sc5200 and 2sa1943 transistor amplifier circuit:
This is a circuit diagram for a 2SC5200 and 2SA1943 transistor amplifier. It’s a mono diagram. This circuit uses four transistors and can produce 200 watts. We can use a 25-0-25 voltage to a 60-0-60 voltage. positive, negative, and ground voltage. We can use another PNP and NPN transistor.
This is the Speaker protection circuit diagram. It can protect our Speaker from the burn. If the amplifier has any problems, this circuit can save our soundbox. Normally, when the transistor makes a short circuit, the voltage comes out from the speaker output line, and this circuit protects that voltage. This circuit should not allow direct voltage to be sent to the speaker. This circuit is essential for protecting the speaker.
Audio equalizer Tone Control Ic 4558:
This is an audio equalizer Tone Control Ic 4558. this circuit diagram can control High mid and low. This circuit needs dual voltage positive negative and ground voltage. we can use 12-0-12 voltage to 15-0-15 voltage. this is a mono-circuit diagram. Every amplifier needs this type of pre-amplifier to produce good sound quality. there are many kinds of pre-amplifiers. Stereo and mono are both types of circuits; this is a mono-circuit diagram.
The voltage should be dual positive, negative, and ground. The main amplifier ground voltage and the pre-amplifier ground voltage must be connected. We can make a voltage of 12-0-12 to 15-0-15 using 7812,7912 and 7815,7915. But this type of voltage produces low amperes. Low amperes can’t make good sound. For this, we can use tip41 and tip42 to make a strong voltage. Here is the diagram to make a 12-0-12 voltage.
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