This flasher circuit consists of an astable multivibrator with the frequencies given by the capacitors. The circuit is from 1965 using light bulbs, but LEDs can be used. Power comes from 4 batteries.
This circuit was found in an English magazine from 1978, but it is still current, just change the...
This circuit causes a buzzer to emit an intermittent tone when the temperature sensed by the...
This microcontrolled null adjustment for operational amplifiers was obtained in a Linear...