This 500 MHz oscillator has an output power of 1 W when powered by a 20 V source. The circuit was suggested by RCA in a 70's documentation.
This antenna for the frequencies 146 or 440 MHz was found in a magazine 73 for Amateur Radio of...
This circuit produces 1 kHz square signals using the CMOS IC 4070. The frequency is given by the...
Found in a 90s PE Hobbyst Handbook, this circuit mimics the sound of a space gun. The components...