This current boosting circuit uses an op-amp and 3 transistors. The current depends on Q1. The circuit is from the 1995 Encyclopedia of Electronic Circuits Volume 5.
We found this circuit in a circuit manual from the 1980s. The circuit eliminates the conductive...
This circuit generates interval signals controlled by a light sensor. The basic time of the sound...
This high-gain digital amplifier uses general-purpose transistors. The supply voltage is logic...