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Web27 Jan 2011 · The My Marconi Shortwave Crystal Set Kit features a single-tuned front end followed by a two-transistor audio amplifier, and accepts a dual-earphone assembly or high-Z headphones. The set is reasonably selective for having only one tuned circuit. The set covers the 49 meter band, with selected tuning from 4.8 to 6.5 MHz and from 5.9 to 7.5 … The Science Buddies kit comes with a 120 picofarad (pF) capacitor. To try tuning to stations at either the very low or very high ends of the AM broadcast range, you could try using larger or smaller capacitors. For example, try a 100 pF capacitor to tune to higher frequencies, or a 150 pF capacitor to tune to lower … See more Before the 1950s and the dawn of television, people would gather in their homes with family and friends around the radio—just as we do … See more WebSVS Soundpath Subwoofer Wireless Audio Adaptor Kit Radio Transmitter Boxed £3.20 2 bids £8.95 postage 4d 19h Self Build DIY Pocket FM Radio Kit - All Components Included £3.89 £1.98 postage FM Stereo Radio Module With Microphone DIY Kit 88-108MHz Soldering Practice PKAY £3.62 Free postage or Best Offer most haunted towns in the world