Typical AM radio rf amplifier

The FS810 circuit serves as a practical implementation of an integrated power amplifier. The FS810 is designed for high-performance use in high-end tape recorders and audio equipment. In the schematic, the speaker is connected to the output capacitor C5...

The project involves constructing two similar EMG circuits with different gain settings to measure electromyography (EMG) signals from two forearm muscles: the Flexor Digitorum Superficialis (FDS) and the Extensor Carpi Radialis Longus (ECRL). The outputs from these circuits will...

The compact, low-cost condenser microphone audio amplifier described here provides high-quality audio output of 0.5 watts at 4.5 volts. It can be utilized in intercom systems, walkie-talkies, low-power transmitters, and packet radio receivers. Transistors T1 and T2 constitute the...

An amplifier with digital volume control can be designed predictably due to the simplicity of the circuit, which utilizes a single chip, the TDA8551. This series of mini amplifiers with digital volume control operates as a BTL (Bridge-Tied Load)...

This circuit is a 73 MHz halogen lamp radio-controlled system. Its purpose is to control the power state of a halogen lamp using a remote control. When the push button on the remote control is pressed, the power state...

This is a classic design of a final amplifier rated at 35 W, utilizing two EL34 tubes in a push-pull configuration. The design originated from Siemens and Halske, dated March 24, 1953, with the code SV410/1. The amplifier was...