The integrated circuit used in this circuit from a 1987 documentation is no longer common today. This circuit can generate a multitude of different sounds and this circuit is an example of application.
The purpose of this circuit is only to increase the input resistance of a multimeter, since there...
September 2017 - The new LDOs of STMIcroelectrinics LDLN025 for currents up to 250 mA and 1.5 to...
This circuit was found in the November 1987 Radio Electronics magazine. The trigger voltage is...