Circuit Project Electronic

This is a slightly simpler circuit than the one above. The circuit uses just one resistor and one capacitor with the 555 timer IC to create a stable and reliable oscillator with an output that it a true squarewave.
The formula for calculating the frequency is:
f=1/(1.4*R*C).
The values in the formula are expressed in ohms, farads, seconds [...]

The circuit on the left shows the standard astable oscillator circuit for the NE555N IC. This si the basic circuit that is shown in most component catalogues and other sources of 555 IC information. With the components shown on the diagram, the output frequency will be approximately 1kHz and the duty cycle 50-50.
…
Related Links
More [...]

This is a simple pulse generator circuit with IC 555 timer.
Use for digital Logic circuit. IC 555 use voltage supply 5V to 15V.
The output’s frequency is control by R1.
Detail more, Please read in this image circuit.
Related Links
More Circuit about Oscillator Generator
More circuit by IC 555
More circuit about Pulse Generator
More circuit [...]