In the figure we have a different configuration for an oscillator with the 555. This circuit was found on a 90s Ham Radio. The output is made directly on a speaker. R1 is typically between 10 and 200-ohm.
In the figure we have a different configuration for an oscillator with the 555. This circuit was found on a 90s Ham Radio. The output is made directly on a speaker. R1 is typically between 10 and 200-ohm.