This circuit has its application suggested in an alarm system. The circuit is from an old RCA manual. R1 has 5.6 ohm, R2 22k, R3 2k2. The capacitor is 8 uF.
The configuration presented below was obtained in the Linear Application Handbook of the National...
An stable multivibrator with 50% of duty cucle can be mounted using the 555 as shown by the...
This circuit was found in the 1991 Electronics Experimenter's Handbook. It activates a relay when...