audio power amplifier circuit 140 w

The second gate (G2) of a MOSFET can be utilized to integrate a crystal oscillator within the same stage as a frequency mixer. While this technique is common in tube technology, it is rarely implemented in dual-gate MOSFET circuits....

This circuit resembles an LED clock but utilizes 12 neon indicator lamps in place of LEDs. It operates on two high-capacity nickel-cadmium cells (2.5 volts), providing power for several weeks. A small switching power supply generates the high voltage...

A wireless hands-free telephone device circuit diagram is presented below. The wireless hands-free telephone device circuit diagram typically comprises several key components that work together to enable hands-free communication. The primary components include a microphone, speaker, Bluetooth module, power supply,...

An interface circuit utilizing optocouplers provides galvanic isolation and common-mode noise rejection between low-voltage microcontroller units and high-voltage integrated power modules in motor-drive applications. Optocouplers ensure high-voltage isolation between a low-voltage device, such as a microcontroller or a pulse-width...

Many households still use tube-type television sets. Connecting these large televisions to a stereo system to enhance sound quality is usually straightforward, as numerous SCART to Cinch adapters are available in accessory shops. However, some television sets may present...

The circuit diagram presented is for a 2 x 60 Watt stereo amplifier utilizing the LM4780 from National Semiconductors. The LM4780 is an excellent audio amplifier integrated circuit capable of delivering 60W RMS power output per channel into 8-ohm...