This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be applied to modern equivalent transistors.
The gain of this step is controlled by the feedback circuit depending on the strength of the input...
This circuit was found in a Popular Electronics from the 90s. The circuit uses TTL technology and...
This commercial circuit is from a Japanese magazine from 1967. It uses germanium transistors, and...