Block diagram of a receive converter ... broadcast band onto an AM radio, and a commonly available 4.433 MHz PAL colourburst crystal with a simple transistor oscillator might do the same for ...

All that is needed for a basic AM receiver—like a simple crystal radio—is an antenna ... 8-3 represents a schematic version of the block diagram shown in Fig. 8-2. The heart of the AM architecture is ...

Tesla’s Spirit Radio uses a simple crystal radio circuit connected to a computer sound-in jack to generate spooky sounds from all kinds of electromagnetic sources. As you will see, it creeped ...