This circuit is from the Linear Applications Handbook of the National Semiconductor of 1994. Transistors are common, but the integrated circuit is not easy to obtain today.
This 80's circuit uses a microcontroller programmed to generate various songs. The circuit can serve...
The operating frequency of this oscillator, found in a technical documentation from Texas...
In the figure we have the way to control a TIC series triac with a reed relay. The current in the...