This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the waveforms of the generated signals. The transistor admits equivalent.
This traditional symmetric power supply configuration with the 7812 and 7912 regulators was found...
Thes astable was found in old publication of 1968. The circuit uses general purpose germanium...
This circuit uses a common diode as sensor. The output goes from 0 to 10 V with the temperature change in...