Two Transistors Wireless Microphone FM Transmitter Circuit Schematic Diagram
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Simple Hybrid Audio Amplifier
The ongoing debate regarding the superiority of valves versus transistors is not the focus here. However, for those undecided, this simple amplifier serves as an excellent test. It employs a valve as a pre-amplifier and a MOSFET in the output...
1W PLL FM transmitter schematic
A compact FM transmitter designed for educational purposes. The RF section of this transmitter can be easily integrated into various projects. However, utilizing the PLL feature requires knowledge of constructing a serial data link and connecting the LPFM transmitter to...
Wireless Car Alarm
This circuit is a wireless car alarm system that consists of two modules: a transmitter and a receiver. It operates on FM radio waves and is suitable for vehicles with a 6-12V DC power supply. A voltage stabilizer can be...
Rf power meter
The reflectometer (SWR power meter) operates across three decades, ranging from 100 kHz to 100 MHz. It can be designed to handle RF power levels as low as 500 mW and up to 500 watts.
The reflectometer, also known as a...
Wireless-fm-microphone
Transistor Q1 functions as an amplifier for the condenser microphone MIC1. The output from Q1 is fed to the base of transistor Q2 through a 4.7 µF capacitor. Capacitors C2 and L1 form an LC tank circuit, which is utilized...
Af Drive Indicator Circuit
This circuit was utilized with an audio power amplifier to identify the point at which the output is -3 dB from maximum, indicated by LED D5, and at clipping, shown by LED D6. The indicator can be employed with any...
Simple Metronome With Transistors
A flip-flop, functioning as an astable multivibrator, can be utilized to generate timing signals in music applications such as a metronome. This can be achieved by adjusting the transistor bias resistor with a value of 100k.
The astable multivibrator configuration of...
3w fm transmitter
This schematic represents an FM transmitter capable of delivering an output power of 3 to 3.5 W, operating within the frequency range of 90 to 110 MHz. While the stability of the circuit is acceptable, a Phase-Locked Loop (PLL) can...
Latest Wireless Car Alarm circuit diagram and explanation
This circuit is a wireless car alarm system composed of two modules: a transmitter and a receiver. It operates using FM radio waves and is compatible with vehicles that have a 6-12V DC power supply. If the vehicle's power supply...