This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be applied to modern equivalent transistors.
Found in old American documentation, this circuit makes use of operational amplifiers from the 70s...
Toshiba LDO Regulators Toshiba has a wide variety of low voltage drop (LDO) linear regulators...
This circuit was published in a 1977 English magazine, but it can be easily assembled since all...