DC power supply Adjustable: This is a DC power supply adjustable. We can adjust the minimum 1.2 volts to a maximum of 35 volts and 1.5 amperes. Here, use one LM317T. It’s LM317T STMicroelectronics Linear Voltage Regulators. This IC needs a good quality of heatsink. One 100k adjustable variable. and …

Sound booster pre-amplifier circuit diagram: This is the Sound booster pre-amplifier circuit diagram. This board is for boosting the sound. This board works as a pre-amplifier. This circuit runs with 12-0-12 voltage to 15-0-15 voltage. Every amplifier needs this type of circuit. Normally, it’s included with the bass tone circuit. …

Amplifier circuit using STK403- 450: This is the amplifier circuit using STK403-450. This circuit is for the STK403-000 series. These 3 ICs can be used in this diagram. STK403-430, STK403-440 and STK403-450. STK403- 430 can make 6X20 watts using 30-0-30 voltage. STK403- 440 can make 6X30 watts using 35-0-35 voltage. …

Amplifier circuit using STK403- 430: This is an amplifier circuit using stk403-430 IC. STK403-400 series products are audio power amplifier hybrid IC. 6-channel class AB amplifier. This diagram has 6 audio inputs and 6 audio outputs. Each channel got 20 watts. 6X20 watts. 35-0-35 voltage.  DIY transistor amplifier driver circuit: …

low pass filter for subwoofer amplifier:  This is the low-pass filter for the subwoofer amplifier. This circuit needs to make a bass amplifier. We also need to make a 2.1,5.1 audio sound system. This board makes only bass. makes only the low part. It has no mid-range or high part. …

DIY transistor amplifier driver circuit: Here DIY transistor amplifier driver circuit board. This is the driver board for the transistor board. We can use 2 transistors to 60 transistors. per pair of transistors can make a maximum of 150 watts. Here, use 2 driver transistors, 2SC5200 and 2SA1943. 2sc5200 is …

How to make an amplifier circuit: How to make an amplifier circuit? This is a mini audio amplifier circuit diagram. It can make 30 watts in bridge mode using 15 volts. This diagram needs a single voltage, positive and negative. It’s a mono diagram. To make a stereo need a …

Circuit diagram 4.0 amplifier: This is the Circuit diagram 4.0 amplifier. This circuit has 4 audio inputs and 4 audio outputs, and each channel makes 34 watts. 12-volt operated audio board. We can use a 12-volt battery. We can use it in the car audio.  tda7297 amplifier circuit PCB The …

tda7297 amplifier circuit PCB: This is a TDA7297 amplifier circuit PCB diagram. This diagram can make 10+10 watts using 12 voltage. We can use 6 to 18 voltage. It’s a stereo circuit diagram. We can use a 12-volt battery. This circuit includes a pre-amplifier circuit: volume bass and tone.  This …

Pre-amplifier circuit diagram: This is a pre-amplifier circuit diagram. Every amplifier needs this type of circuit diagram. This circuit makes the sound good. It has one main volume, a low part, a mid-range, and a high. This diagram runs using a 12-volt only. it’s a mono board/ for stereo needs …