This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be applied to modern equivalent transistors.
We find this efficient emergency lighting system in a 1987 publication. The circuit keeps a...
We found this circuit in a 1976 documentation. The FET can be the BF245 and the bipolar transistor a...
The shunt type regulators are connected in parallel with the load, deflecting the current to...