This circuit is from an 80's technical newsletter. The circuit can use any general purpose transistor and its power supply can be changed with a resistive divider to use a single 9V battery.
This guitar pedal was found in a 2004 documentation. The signal is transmitted to an FM receiver...
This circuit was published in an article in Electronics Now magazine in October 1995. The circuit...
This circuit uses a 100 kHz crystal, but nearby frequencies can be obtained with appropriate...