This circuit is from a 1977 Radio Shack documentation. It produces a modulated sound of good intensity in a buzzer or speaker. An external amplification step can be used and the power supplied with voltages from 5 to 15 V.
This circuit is from a 1977 Radio Shack documentation. It produces a modulated sound of good intensity in a buzzer or speaker. An external amplification step can be used and the power supplied with voltages from 5 to 15 V.
