'Gibson Girl' Crystal Radio

Discussion in 'Wireless & RF Design' started by vu2nan, Apr 25, 2016.

  1. vu2nan

    Thread Starter Member

    Sep 11, 2014
    This series-tuned, shunt-fed crystal radio was built using parts salvaged from a vintage / battered SCR - 578 lifeboat radio (popularly referred to as 'Gibson Girl').


    'Gibson Girl' Crystal Radio - Schematic

    It consists of a baseplate, antenna tuning coil, antenna tuning capacitor and a terminal strip modified to suit.


    'Gibson Girl' Crystal Radio

    The only part required to be fished out from the junkbox was a Schottky diode SB 860. It was mounted underneath the terminal strip.

    The local 612 kHz, 200 kW AM broadcast station comes in real loud using a 60' long wire antenna and sound-powered phones. Headphone current, measured using a 1mA FSD 60 Ω meter, is 600 μA.


    Last edited: Apr 25, 2016