This low frequency divider uses unijunction transistors. The bipolar transistor can be a BC548 and the zener diode Z4XL can be a 12 V zener. The circuit was found in a 1967 publication.
This circuit was found in an integrated circuit manual from the 1980s. The circuit can be designed...
This old circuit is suitable for signaling applications. The lamp must be incandescent, and the...
We found this circuit in a 1997 publication. It produces pulses of excitation whose intensity can...