Found in the April 1995 issue of Electronics Now magazine, this circuit provides an output voltage that is three times the supply voltage. The current is very low.
This oscillator has its frequency controlled by crystal and its frequency can be between 100 kHz...
This small crystal microphone transmitter was indicated in an 80s spy book. The range depends on...
The circuit shown is from the 1994 Linear Applications Handbook by National Semiconductor. The...