This circuit shows that we can implement a voltage-controlled oscillator with almost any CMOS that can be connected as an inverter. The circuit is from Radio Electronics from January 1987.
This VCO or Voltage Controlled Oscillator uses common components. TR1 can be a BF245 and TR2 a...
This 555-based circuit was found in the August 1976 issue of Radio Electronics magazine. The tone...
The integrated circuit of this project is not very common. The circuit is from 2003. This circuit is...