100 Hz Second Order High Pass Filter (CB25815E)

This filter with the 741 op amp was found in the February 1995 Electronics Now magazine. The power supply must be dual.

Low consumption metronome (CB8232E)
Suggested by a 90s Electronic Design, this circuit drains only 0.25 mA from its source. Listening...
Crystal Oscillator (CB6522E)
The crystal frequency of this circuit found in an American documentation is limited only by the...
Low Side Current Sensor (CB20383E)
This current sensor employs the Texas Instruments LMV358A low voltage operational amplifier. This...