RC and LC clock oscillators ( 6 ) :

Clock oscillators are circuits which generate square wave or nearlysquare wave signals suitable for digital electronics circuit asclock signal. The most common simple clock oscillator typesare resistor-capacitor (RC) and inductor-capacitor (LC) oscillators.

• CMOS Oscillator - 4 MHz oscillator using 74HC14 and inductor   
• CMOS inverter VCO tunes octave to UHF - robust and versatile vco provides a stable output to 300 MHz   
• CMOS RC circuits - includes CMOS 555 timer clock oscillator and schmitt-trigger RC oscillator   
• Crystal 32.768KHz CMOS Oscillator   
• Design and construction of radio frequency oscillators - Some people regard the design of RF Oscillators to be something akin to a "black art".   
• Sqaure Wave Oscillator - two gates from a CMOS 4011 NAND chip form a simpel square wave oscillator where the mark space ratio can also be independantly controlled by varying the value of the resistors   

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