This TTL circuit for digital signals up to a few dozen megahertz was found in old documentation, but can be easily assembled today and even used as a shield for microcontrollers. Power must be supplied with a 5V voltage.
This circuit cut the noise peaks by means of diodes so that they do not appear in the output...
El circuito de la figura es sugerido por National Semiconductor y puede servir de base para una...
This circuit allows the use of headphones and microphones with diverse characteristics in audio...