Single Crystal Filter (CB6542E)

High selectivity filters can be obtained by combining same frequency crystals in series as shown in the circuit.

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Square Root Extractor (CB25585E)
Found in the July 1993 Electronics Now magazine, this circuit provides an output voltage whose...
Low Power Astable Multivibrator (MSB037E)
The astable multivibrator shown by figura 1 has a very low current drain and can be powered from 6...
20 LED Effects Circuit Using 4017 (CB25438E)
This series LED circuit was found in the February 1992 issue of Radio Electronics magazine. The...