Piezoelectric Buffer (CB21152E)

This circuit was found in American documentation from the 90s. It serves as an amplifier for a piezoelectric transducer.

Pulse Generator (CB24918E)
This sophisticated pulse generator was found in a Radio Electronics magazine from November 1985. It...
20 dB amplifier 741 (CB15057E)
This is the traditional configuration of an inverter amplifier with 100 voltage gain and...
Proximity Switch (CB6410E)
This circuit works directly connected to the network and special care must be taken with its...