2MHz astable (CB9102E)

This TTL circuit can be used as a shield. The frequency can be changed by changing the capacitors.

NO Sensor Alarm (CB12346E)
We can either supply this circuit with 12 V if we use a relay for this voltage as well as 6 V if...
Two NAND Gates Monostable (CB126E)
Two NAND gates are used in the configuration shown here to perform as a monostable triggered by...
Crystal Asymmetric Astable (CB12001E)
Frequency and active cycle of this circuit are fixed by the two crystals that may have different...