remote control circuit diagram
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IR Remote Control Extender mark 4 Circuit
An infrared wired repeater circuit is designed to control appliances from a remote location. Parts List: R1: 1k Resistor (1), R2: 3.3k Resistor (1), R3: 10k Resistor (1).
The infrared wired repeater circuit serves as an interface for controlling various electrical...
G3XTZ DF Rx Details
The receiver is constructed on a single-sided printed circuit board measuring 2 by 4.3 inches. Its compact size allows for installation in various enclosures, which should be adequately shielded. The main directional signal is captured by a tuned ferrite rod...
RF Signal Attenuator up to 30dB for 1MHz - 500MHz Input
This is a PIN diode-based RF signal attenuator circuit that operates with input frequencies ranging from 1 MHz to 500 MHz. PIN diodes are among the most commonly used components in RF applications.
The RF signal attenuator circuit utilizing PIN diodes...
A simple tuned radio frequency receiver
This simple tuned radio frequency receiver was designed and constructed in the mid-1990s. The receiver was tested under urban and field conditions, in varying temperatures. This straightforward circuit exhibits high sensitivity, good sound quality, and reliability. A signal received by...
20M Cw Transmitter Circuit
The transmitter features a VXO circuit that drives a keyed amplifier. This keyed amplifier powers an MRF 476 final amplifier, producing approximately 2 watts of output. Additionally, a solid-state T-R switch is incorporated for the receiver. The component values provided...
RF Inductance adaptor for multimeter
The circuit's operating principle is that if you make a pulse width proportional to inductance, and keep the pulse frequency and amplitude constant, and then pass the pulse through a low pass filter so that only the average voltage comes...
5474 tips
The Aristo ART-5474 Accessory Panel is a complete receiver designed to control accessories using buttons A through E on the Train Engineer transmitter. The ART-5474 is capable of controlling two turnouts, one constant load such as lights, and can trigger...
simple tv audio video transmitter
A simple TV audio-video transmitter circuit can be constructed using this schematic diagram. This circuit allows for the transmission of video signals from a VCR or other devices to a TV without the need for cables. The video signals input...
Wireless-fm-microphone
An adjustable capacitor C10 and a coil L1 create a tank circuit that, along with Q1, C2, and R1, oscillates at a frequency within the FM band. The center frequency is adjustable by tuning C10. An electret microphone, M1, captures...