In a September 1992 Radio Electronics article, we found this basic 555 circuit used to generate fixed times. Capacitor C1 and resistor R1 determine the time. The circuit drives an LED.
The circuit shown is from the Motorola Linear Databook of 1990. This circuit converts signals in...
In the circuit in the figure, we have the production of rectangular signals with frequencies of up...
This circuit uses a photoransistor to control the frequency for this oscillator. Power supply...