Found in Electronics Now, this circuit generates signals for testing like a signal injector. The frequency will be between 20 Hz and 10 kHz with the indicated components.
The presented circuit uses a symmetrical power source to supply an amplifier with the LM139 or...
This circuit was obtained from the 1995 Encyclopedia of Electronic Circuits Volume 5. The circuit...
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. Some of...