This frequency divider by 10 uses discrete components only. Modern equivalent components can be used as the circuit is from an 80's documentation. Nearby frequencies can be used.
This configuration can be found in other articles on this site. This was obtained in 1998...
This circuit generates both white and pink noise. The transistors can be BC548 and the power...
Found in 90s Radio Electronics, this shield can control high voltage loads in the power grid....