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Echo, Delay Preamplifier.

Hello Friends, in this post I make a Echo, Delay preamplifier Board. For this preamplifier I have used 4558D IC. But in place of 4558D IC, you can also use TL072 or NE5532 IC. In this preamplifier, you can control echo and delay …

TDA7294 Flat Frequency Booster Amplifier

Hello Friends, In this post I make a 100 Watt mono amplifier using TDA7294 IC, which can deliver up to 90-watt RMS output at 4Ω ±30V. This is a flat frequency amplifier. So for that, all frequencies are very clear. You can hear a…

170W Mono Amplifier

Hello Friends, In this post I make a mono amplifier using a pair of 2SC2922 & 2SA1216 Transistors. which can deliver up to 170W output at 4Ω ±45V. For designing my PCB, I used EasyEda online software. Then I export the Gerbe…

Dual Band stereo tone control

Hello Friends, in this post I make a 2 band stereo tone control. In this tone control, you can control High and Low frequency. For this tone control I have used NE5532 IC. But in place of NE5532 IC, you can also use TL072 or 4558…

40W mono Amplifier

Hello Friends, In this post I make a 40W mono amplifier using TIP41C and TIP42C Transistor, which can deliver up to 40W RMS output at 4Ω ±15V. The sound quality of this amplifier is good, all frequencies are clear. You can use th…

TEA2025B mini stereo amplifier

Hello Friends, in this post I make a mini stereo amplifier using TEA2025B IC. which can deliver up to 3W output per channel at 4Ω. You can use a 3.7V-12V battery to power up this amplifier. The sound quality of this amplifier is …

500W Class D TL494

Hello Friends, In this post I make a 500 Watt mono amplifier using IRFP260N MOSFET and TL494 IC. For make coil of this amplifier, must use LCR meter. Because 50% sound clarity is depended on it's coil, and 50% on circuit . Wr…

80W Compact Amplifier

Hello Friends, In this post I make a 100W mono amplifier using a pair of C5198 & A1941 Transistors. which can deliver up to 80W output at 4Ω ±45V. For designing my PCB, I used EasyEda online software. Then I export the Gerbe…

4440 IC Mono amplifier.

Hello Friends, in this post I make a 19W mono amplifier using LA4440 IC. This is a class AB amplifier. Which can deliver up to 19 Watt RMS output at 4Ω ±15V, Test frequency 1khz. This IC is very cheap and basic. So don't expe…

100W SUB-AMP.

How to make a 100 Watt subwoofer amplifier. Hello Friends, In this post I make a 100 Watt subwoofer amplifier using 2SC5200 and 2SA1943 Transistor, which can deliver up to 100-watt RMS output at 4Ω ±30V. For the low pass filter o…

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