DIY Guitar Transistor Preamp

DIY Guitar Transistor Preamp
Here the circuit design for DIY guitar transistor preamp. It consists of a circuit of two transistors and four controls that can be vary the level of the treble, bass, gain, and total salidad circuit (volume). It can be used as buffer at the beginning of a chain of effects. Or combine it with the Marshal Guvernor and a power to put together a cute amplifier. (more…)

MOSFET Power Amplifier 5200W IRFP250

MOSFET Power Amplifier 5200W IRFP250
This is the circuit design of Mosfet power amplifier 5200W RMS, the schematic is for single channel. The circuit uses 16x IRFP250 to gain 5200W RMS power output at 2 ohms load. To feed this circuit , you will need 150 volts dual polarity (symmetrical) power supply of course with very high DC current. (more…)

260W Power Audio Amplifier

260W Power Audio Amplifier
This the circuit diagram of 260W power audio amplifier capable of delivering up to 260W RMS at 8 Ohms load. The signal level of 1 VPP standard amplitude is input to a differential stage composed of BC556C Transistor. Then the signal is input to the post-formed by complementary transistors in order to achieve the desired power. (more…)

1 Watt Stereo Audio Amplifier based IC KA2209

1 Watt Stereo Audio Amplifier based IC KA2209
Above schematic diagram is 1 Watt stereo audio amplifier based IC KA2209 can be used for small electronic device such as radio, smartphone, tablets or other gadgets which require little sound amplification :D This is the text book circuit for this IC in stereo mode. It is ideal for battery powered operation. Power output depends critically on speaker resistance & supply voltage. At 3V into 4 ohm speakers the power is 0.1W. At 6V into 4 ohm speakers it

Stereo Pre-amp with Volume and Tone Control

Stereo Pre-amp with Volume and Tone Control
This is the circuit diagram of stereo pre-amp with volume and tone control. When using one of our amplifiers (big or small), you always need a volume control and preferably also a tone control. This circuit available in kit. This circuit operated with 12V symmetrical/dual polarity power supply. (more…)

350 Studio Amplifier Circuit Scheme and PCB Layout

350 Studio Amplifier Circuit Scheme and PCB Layout
Above scheme is the circuit diagram of 350 studio amplifier uses 4 pairs of transistor MJL21193 and MJL21194 as the main components for this circuit. This circuit requires symmetrical power supply to work. The scheme and PCB layout provided here is for single channel (mono) application, build two similar circuit for stereo application. (more…)