When the power is cut off, this circuit keeps the flashlight on for a while, allowing it to be located. The circuit is from a Radio Electronics from September 1992.
This circuit was found in the September 1974 issue of Radio Electronics magazine. It consists of a...
This circuit was found in a 1995 documentation, eventually requiring two resistors in series with...
This amplifier was found in Burr-Brown documentation from the 90's. The gain can be programmed by resistor...