This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be applied to modern equivalent transistors.
This circuit was found in Philips documentation from 1965. No information was given about the...
This control allows to start or stop a motor up to 3 or 4 A with a low intensity signal. The...
We found the circuit of this Japanese transistorized commercial receiver in a documentation from...