XTAL oscillator with fine tuning (CB22403E)

We found this circuit in an old English documentation. The integrated circuit is of a specific type of the time.

Electronic Bingo (CB17441E)
This 2001 CMOS digital circuit draws numbers from 00 to 99 and can be expanded. However, it does...
3 kHz Low Pass Filter LM3900 (CB13837E)
This filter was found in an old publication from 1977. The circuit must use a simple two-voltage source...
Freezer Alarm (CB1281E)
This circuit beeps when the sensor is triggered by the opening of the freezer door or other...