This circuit was obtained from Elektor magazine and published in the Encyclopedia of Electronic Circuits Vol 5 of 1995. Transistors are RF types that are still common today.
This configuration, which uses a transistorized circuit in the feedback, provides a logarithmic response...
This ultra-simple test circuit is of great use in any electronics bench. The power is supplied by a...
This circuit was found in a 1977 documentation. It limits the voltage from a source using zener...