NE602 Crystal Oscillator (CB26005E)

This oscillator reaches 50 MHz with an overtone crystal. The circuit is from Electronics Now magazine from February 1997.

Wireless FM Microphone (CB11526E)
This excellent wireless microphone circuit for the varicap-modulated FM band came out in...
Simple Power Supply (CB16384E)
The simple low voltage source that can be used as a battery eliminator, shown in the figure was...
Third Order Asymmetrical Butterworth Filter (CB5110E)
This asymmetrical crossover filter was obtained from an 80s integrated circuit manual. The...