This high-impedance headphone circuit was found in a 1990s William Sheets. The power is low, but the high input impedance makes it useful for radio applications.
Found in a 90s Electronic Design, this circuit rectifies sinusoidal signals providing output as...
This circuit was found in a Linear Technology manual from the 1990s. The circuit makes use of the...
This experimental flip-flip changes its state by the command of two push-buttons. The state is...