Car Audio Amplifier Circuit Electro Schematics

The add-on circuit presented here is useful for stereo systems. This circuit has provision for connecting stereo outputs from four different sources/channels as inputs and only one of them is selected/connected to the output at any one time. When power...

2SC2922 and 2SA1216 or 2SC3264 and 2SA1295 power amplifier circuit

The performance of the amplifiers 2SC2922 and 2SA1216 (or 2SC3264 and 2SA1295) is excellent, featuring good linearity and strong overload capabilities. These devices are utilized as high-fidelity power amplifier stages, demonstrating outstanding performance. The circuit, as illustrated in Figure 2-30,...

Audio/Video Switcher

This circuit is a two-channel baseband video switcher. Buffer amplifiers U1/Q1, U4/Q4, and associated components produce a buffered 75-ohm video signal, which is routed to the switching network K1/K2/K3. Relay K1 selects either of the two video amplifiers and feeds...

Power amplifier 65W with HEXFET

Cleaned Input: A medium power amplifier that is characterized by a lot of good sound quality, but simultaneously is very simple in the construction. It uses, enough time in active loudspeakers. In its output stage exist the very good FET...

Mini Audio Amplifier

This is a low watt audio amplifier with a different technique in design. The 1.8K resistor has been connected to output of the circuit instead of VCC line. The output power of the circuit is about 250mW on an 8...

Silent audio switching-mixing

Two or more signals can be switched and/or mixed without annoying clicks by using FETs and a low input-impedance op amp circuit. The circuit design utilizes Field Effect Transistors (FETs) to facilitate the switching and mixing of multiple signals while ensuring...

AV (Audio/Video) Wireless Transmitter

This circuit enables wireless audio and visual transmission to a television, which serves as a receiver, thus negating the need for a separate monitor. Additionally, it can be connected to a VCR or CCD camera, facilitating the establishment of a...

60 Watt Audio Power AmplifierCircuit

To celebrate the hundredth design posted to this website and to fulfill the requests of many correspondents wanting an amplifier more powerful than the 25W MosFet, a 60 - 90W high-quality power amplifier design is presented here. The circuit topology...

Audio Mixer with one transistor

This single transistor audio mixer is utilized in an amplifier circuit design featuring a base-driven transistor, where the emitter is current-controlled. The majority of the driving current flows through the collector. This audio mixer circuit employs a single transistor to mix...