This circuit was obtained from the 1976 Siemens Integrated Circuits Manual. It is the circuit for applying the TBA400 as a broadband amplifier.
This circuit uses old germanium transistors because it was found in an old magazine from 1973....
This logic level indicator also indicates the presence of pulsating signals through a third LED. It...
This circuit is from the 1990 Motorola Linear Databook, which can be developed with more modern...