This simple low current circuit was found in a Radio Electronics magazine from August 1960. The circuit does not use transistors in regulation, but only zeners directly.
Synchronized key. This circuit was found in a 1966 General Electric documentation. Modern...
This oscillator by Wien bridge is based on stabilization by a small incandescent lamp. The...
This oscillator with the PLL 4046B was obtained from a 90s Radio Electronics. The circuit...