Remote Control Receiver circuit diagram

The receiver consists of multiple subassemblies, including an active antenna, an amplifier featuring regeneration control and band-switching circuitry, an AM detector, a power amplifier, and an output device such as an internal speaker, external speaker, or headphones. Additionally, it is...

Wireless Car Alarm circuit diagram

This circuit is a wireless car alarm system constructed using two modules: a transmitter module and a receiver module. It operates on FM radio waves and is suitable for vehicles with a power supply of 6-12VDC. A voltage stabilizer can...

Rf-Type Battery Charger Circuit

This type of charger transfers RF energy from an inductor (L2) to an external pickup coil. The pickup coil is connected to a rectifier and a battery that requires charging. This design is advantageous as it eliminates the need for...

Deluxe Crystal Controlled Transmitter

A high-quality QRP transmitter, named NEXUS 6, is designed to explore issues related to extremely narrow bandwidth communication. This device is not merely a simplified version of a QRP transmitter; it aims to create a cost-effective system that can be...

14W CW TRANSMITTER

A low-power two-stage FET transmitter designed for the 80-meter amateur band utilizes a Pierce crystal oscillator that does not require an output resonant circuit. A DC milliammeter can be connected across a 150-ohm resistor in the gate circuit of the...

IR Interval Timer for Pentax DSLR Camera

This project aims to build an infrared (IR) interval timer that can be utilized to capture images, such as time-lapse movies of sunrises and night skies. The IR interval timer circuit is designed to automate the process of taking photographs...

tv transmitter circuit

Here is a simple schematic of a TV transmitter circuit, or video transmitter circuit, capable of broadcasting in the VHF range from 60 to 200 MHz. The input video source can be any CCD camera or VCR. The output power...

valved transmitter for 3.5 MHz

This transmitter project is a highly efficient, rugged, and simple low-power continuous wave (C.W.) unit delivering more than 10W. It is crystal-controlled with stabilized high tension (H.T.) and features a buffer stage between the crystal oscillator and power amplifier stages,...

1.5 Volt Tracking Transmitter

A 1.5 Volt tracking transmitter utilizing simple circuits. The current draw for this tracker is 3.7 mA, allowing the 1.5V button cell to have a prolonged lifespan. The 1.5 Volt tracking transmitter is designed to operate efficiently with a low current...