Fourth-Order High Pass Filter 741 (CB25597E)

This 100 Hz filter was found in the August 1993 issue of Electronics Now. The components can be modified to operate at other frequencies.

| Clique na imagem para ampliar |

Electronic Switch (CB16908E)
This circuit controls a relay in a bistable way by touching the sensors type NF (CH3) and NO...
Multi Tone Siren (CB436)
This circuit produces modulated tones in a loudspeaker. The effects can be adjusted by the...
Relaxation Oscillator Using PUT (MSB075E)
This is a simulation of a Relaxation Oscillator using a programmable unijunction transistor (PUT). The...