This very simple amplifier was found in the Philips Databook of 1990. The circuit is suitable for headphones and other battery powered applications.
Found in old English documentation, this circuit simulates a diac and can be used to trigger...
This circuit was obtained from a Radio Electronics from October 1963. The 4 transistors must be...
This didactic circuit was found in a 2001 documentation. It presents the result of programming in binary...