From an audio signal, this circuit gets two signals of the same amplitude and opposite phases. This setting is widely used in bridge amplifiers (BTL). Transistors may be commonly used as BC series.
In this circuit of an American publication of 1978, the integrated circuit may be the 4001 and the...
This circuit is from a Japanese magazine of 1973. The circuit is designed to withdraw the power...
We found this circuit in the Radio Electronics magazine of February 1993. The main integrated...