This circuit is from a Radio Electronics from March 1960. The generator works with a 22.5 V battery, generating good intensity signals determined by the LC circuit.
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...