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.
We found this circuit in an English documentation from 1995. The circuit makes use of common...
This circuit was found in an Electronics World of 1968. The transistor can be any general purpose and...
This micro FM transmitter uses a tunnel diode as an oscillator. I found it in an English...