This simple circuit for the 3 to 30 MHz range was found in the Electronics Experimenter Handbook Special Projects of 1983. The coils consist of 10 and 50 turns of 32 wire on a 1 M x ½ W resistor.
The battery is charged by the photocell that keeps the low consumption beacon in the dark. The...
The circuit transistors, found in a 1974 documentation, may be the BC548. The circuit is used in...
We found this circuit in the April 1993 Electronics Now magazine. Almost any general-purpose JFET...