The power transistor of this circuit can also be the TIP42 mounted on a good heat sink. The circuit is from old European documentation and the integrated circuit used is not very common today.
The purpose of this circuit is to measure the intensity of audio signals. We found it in the...
The battery charger suggested in the figure has its current limited by resistor R1. This component can...
This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be...