Pulse generator with delay 555 (CB8922E)

We found this circuit in a Hands On Electronics from the 90s. The delay is given by the formulas next to the diagram.

Analog Divider Multiplier (CB21035E)
This circuit was found in an Analog Devices publication from the 1990s. The circuit performs input...
Transistor long-term timer (CB9370E)
Found in Motorola documentation from the 90s, this circuit can be implemented with current...
Automatic Frequency Control (CB4101E)
We found this circuit in an old documentation for hams. In it we have the way to use a varicap to...