Tasel

Very high power amplifier with 10 pairs of power transistor. Can use MJ15024 and MJ15025 or MJ21193 and MJ21194. Those 20 pieces transistor work as final active component for final gain. This circuit required dual output power supply 130V.

Based on four chips, TL072, TL074, MN3101, and MN3004 which produce four channels of output, the center, rear, front right, and front left surround audio accommodated in a signal of left and right channels. The circuit however can be applied with other basic functions as a standard decoder.

High-performance amplifier. Ultra low distortion but high voltage DC while operated. Using two on-board 6.5A fuses, just cause this circuit is capable of delivering around 300W of music power into 4Ω, each fuse carries around 4.4A RMS or higher.

Very small amplifier witch can provide 7W/4Ohm output. This circuit, although have small output, but capable to produce output with low total harmonic and cross-over distortion and work at 20Hz to 20kHz. The circuit using IC TDA2003 as main component.

This simple, direct but jagged circuit, aim for any high quality audio application like Guitar or Bass amplifier. Using a mains transformer with a secondary winding rated at the common value of 25 + 25V (or 24 + 24V) and 100/120VA power, two amplifiers can be driven at 45W and 69W output power into 8 [...]

Composed of two similar mono amplifier. Each channels has its own power supply. This class A audio amplifier take 50V as the fuel, and will produce very loud sound output without distortion.

A simple mini stereo amplifier, which based on 2 chips. As pre-amp, there the MC1458 dual op amp, and the LM378 work as dual 4-watt amplifier.

Here is 6-transistor 140 Watt audio amplifier. Using 2N3569, 2N3055, 2N4355, and MPS6533 this circuit can be useful for your home audio. The amplifier work with 30 V as the input voltage and produced output will be received by 8 ohm impedance speaker.

This is a small and simple audio amplifier with TDA7294. Using 2 TDA7294 for stereo (2×80 watt) mode and bridge mode (180 watt). The TDA7294 for use as class AB audio amplifier.

Very high power amplifier with 10 pairs of power transistor. Can use MJ15024 and MJ15025 or MJ21193 and MJ21194. Those 20 pieces transistor work as final active component for final gain. This circuit required dual output power supply 130V.

A simple step up DC to DC converter with a maximum draw of about 800mA. Applying a op-amp as a square wave oscillator to trig an inductor and another op-amp in a feedback loop, provides a 24V power source for many uses.

This inverter circuit is very useful for low load application such as emergency light, radio, or DVD player. With transistors as main active component, please take more attention when you assemble this 100 W inverter circuit. Power source of this circuit just 12V DC, but can produce about 100W at 220V AC with simple assembling [...]

This circuit will charge most lead acid battery with quickly and easily. A LED in the circuit as a monitor, which light when the battery fully charged an this circuit automatically switched off.

This circuit is for a solar powered white LED which automatically turn on in the dark. Can be applied for outdoor or indoor night light uses. For indoor applications, when the circuit is operated near another lamp, it can be set to automatically active if the other lamp is turned off. Circuit features include selectable [...]

Work as pre-amp modul, this circuit offers 20db+ of clean boost. RC & AC Booster Guitar Effect by Xotic also featured controls for volume, gain and EQ controls for treble and bass. With 9V power DC, this circuit is easy to use. As the name, “RC” is mean Really Clean was tested.

Using IC 4001, 4027, NE555, and CA3130, this circuit can convert 24VDC to 220VAC 300W. A pairs of MJ15003 or 2N3773 as the last active components before drive the pulse into the transformator.