100 MHz RF Oscillator Circuit


Posted on Jun 22, 2012

The following schematic diagram shows the design of a 100 MHz Radio Frequency RF Oscillator Circuit. The electrets microphone picks up and amplifies sound then fed it into the audio amplifier stage built around the first transistor. The output from the collector is fed into the base of the second transistor where it modulates the resonant frequency of the tank circuit (the 5 turn coil and the trim cap) by varying the junction capacitance of the transistor.



100 MHz RF Oscillator Circuit - image 1
Click here to download the full size of the above Image.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

HF GENERATOR using a 68HCx11
Solar Charge Controller connection with solar panel
the design of the digital frequency meter of one-chip computer and CPLD
laser door alarm circuit
AD1865 based audio DAC with I2S input and voltage output
Rustl3rs Custom Smart LED Light
12dB-oct by the OP amplifiers low-pass filter
A resistor-capacitor circuit protection thyristor



Top