Optical receiver

A cost-effective and straightforward AM receiver circuit utilizing the MK484 integrated circuit. The circuit requires minimal external components and operates within a frequency range of 150 kHz to 3 MHz. The MK484 AM receiver circuit is designed for simplicity and...

For the regulation needs a transmitter or generator in mpa'nta the CB, that is to say in the region 27MHz. If you have a certain friend with CB, you convince you to help. Connect a piece of cable around...

This is a very simple FM receiver built using only one transistor. It does not utilize any chips or other active components. The output is connected to earphones; an amplifier circuit is required if the radio is to be...

Utilizes a barium titanate transducer as a microphone, tuned with a 20 mH coil to generate peaks at control frequencies of 38.5 kHz and 41.5 kHz. A balanced discriminator detects the two ultrasonic tones. A frequency shift in the...

The simple motor optical encoder circuit is not particularly difficult; however, it requires careful verification to ensure all connections are correct before initial operation. The primary components utilized in the circuit include the 7805 voltage regulator, the PIC18F4520 microcontroller,...

Use #22 Hook-up Wire for Windings. Numbers on coil are connection points to the FAR Circuits PC board. More: Voltages shown are typical values using a 9V battery. C3,C5 are three gang variable capacitor 10-60pF/gang. Many substitutes are possible....