10w stereo audio amplifier using tda2009a
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Class D Amplifiers: Fundamentals of Operation and Recent Developments
Ultra-low EMI, Mono and Stereo, Class D audio power amplifiers provide Class AB performance with Class D efficiency. Maxim`s spread spectrum modulation (SSM) al...
Choosing a Low-Noise Amplifier
This article examines key parameters in choosing a low noise amplifier for low frequency analog applications such as buffering data converters, amplifying strai...
Traynor YBA-1 at high plate voltage
As some of you know, the Traynor YBA-1 is a very close derivative of the classic Bassman/JTM-45 circuit. I recently picked up a spectacularly clean `67 copy tha...
Flea Power Vacuum Tube Amplifier
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4 Watt Single Ended Vacuum Tube Amplifier
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Class B audio amplifier
The closer matched the two transistors are, the better. If possible, try to obtain TIP41 and TIP42 transistors, which are closely matched NPN and PNP power tran...
Amplifier circuits
Note, Q3 and Q4 in Figure below are complementary, NPN and PNP respectively. This circuit works well for moderate power audio amplifiers. For an explanation of ...
Simple Hybrid Audio Amplifier
The debate still goes on as to which are better, valves or transistors. We don`t intend to get involved in that argument here. But if you can`t make your mind u...
Moduler PreamplifierCircuit
To complement the 60 Watt MosFet Audio Amplifier a High Quality Preamplifier design was necessary. A discrete components topology, using + and - 24V supply rail...
Hybrid Headphone Amplifier
Potentially, headphone listening can be technically superior since room reflections are eliminated and the intimate contact between transducer and ear mean that...
Guitar Amplifier
The aim of this design was to reproduce a Combo amplifier of the type very common in the `sixties and the `seventies of the past century. It is well suited as a...
Compact High-Performance 12V 20W Stereo Amplifier
Amplifiers which run from 12V DC generally don`t put out much power and they are usually not hifi as well. But this little stereo amplifier ticks the power and ...
8 Watt Audio Power Amplifier Schematic
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7 Watt Audio Power Amplifier Circuit Schematic
This small amplifier is constructed around the TDA2003 IC, capable of delivering 4Wrms at 4ohms. The TDA 2003 has improved performance with the same pin configu...
60 Watt Guitar Amplifier
This design adopts a well established circuit topology for the power amplifier, using a single-rail supply of about 60V and capacitor-coupling for the speaker(s...
60 watt bass amplifier
The advantages for a guitar amplifier are the very simple circuitry, even for comparatively high power outputs, and a certain built-in degree of loudspeaker pro...
60 Watt Audio Power AmplifierCircuit
To celebrate the hundredth design posted to this website, and to fulfil the requests of many correspondents wanting an amplifier more powerful than the 25W MosF...
60 watt audio power amplifier circuit
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5 Watt Class-A Audio Amplifier Circuit
This solid-state push-pull single-ended Class A circuit is capable of providing a sound comparable to those valve amplifiers, delivering more output power (6. 9...