20Mhz-vhf-crystal-oscillator


Posted on Aug 11, 2012

A typical circuit at 20 MHz is shown. The crystal, which has an internal series resistance Rs of 14ohm, oscillates at its third harmonic. The diode clamp Dl and D2 provides a constant amplitude control.


20Mhz-vhf-crystal-oscillator
Click here to download the full size of the above Circuit.

The transistor operates continuously in a linear mode over a complete cycle of oscillation, and reflects a reasonably constant load across the crystal at all times.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Telephone Light Ringer
LED operates as light sensor
Audio Amplifier Volume Indicator
ray dialer
Oscillator circuits 5
General Hobbyist Circuits
SW Receiver Using ZN414
XR1071 application circuit



Top