Sine Frequency Doubler (CB25812E)

This circuit was found in the February 1995 issue of Electronics Now magazine. It can double the frequency of audio signals using common components.

Audio Limiter (CB25429E)
We found this circuit in the January 1992 issue of Radio Electronics magazine. The circuit...
Divide-by-8 Counter - 4018 (CB170E)
The division by eight using the 4018 is made as shown here. It isn't necessary to use additional...
OPAx388 Precision Operational Amplifiers
May 2017 - Texas Instruments' new OPAx388 operational amplifiers can now be purchased from Mouser...