This circuit was found in a 1967 US documentation. The circuit applies to modern general purpose transistors. The circuit has no offset. The power supply must be symmetrical.
This low power circuit was obtained from an American 80's documentation. The circuit indicates the...
This circuit can operate in a 100 dB range with signals of up to 100 MHz frequencies. Similar...
This circuit was found in a 1991’s PE Hobbyst Handbook. The circuit is based on altering the sound...