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.
This circuit was found in an Electronics World of 1969. Transistors are general-purpose types. It...
It is like to the previous circuit with a lock that keeps the LED on at the end of the timer. The...
This good quality audio amplifier with an output of about 10 W with the original transistor was...