(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 6 of 6

Thread: Crystal radio without an antenna

  1. #1
    Senior Robin Hood Guy Ian Gills's Avatar
    Join Date
    Jul 2007
    Location
    USA
    Posts
    2,781

    Default Crystal radio without an antenna

    All of the circuits that I found for crystal radios have you connect it to a long wire for the antenna or to a cold water pipe for a ground. Is there any crystal radio circuits that don't need a long antenna?

    Long antennas look messy.

    No power, no amplification, just a germanium diode and headphones would be so much fun and portable too.
    Last edited by Ian Gills; 07-09-2011 at 06:17 PM.

  2. #2
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,773

    Default

    If you want to enjoy an early 1900's radio, I think you'd look really attractive and geeky dragging along a 20 to 100 foot wire on the ground. and don't forget to add a tuning circuit to choose your desired radio station, They used to scratch the old style crystal to tune them.you'd also need a really sensitive set of headphones. It will keep you occupied and out of trouble for a while.
    I am definitely not a pro plumber, but I am a pro crastinator

  3. #3
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    Look inside your little pocket radio or desktop portable...you will find an antenna. Probably a ferrite bar wrapped with a lot of copper wire. This little wonder is what makes portable radios work, and you could 'borrow' one for your crystal set. They are somewhat directional, which is why you often have to turn your radio for best reception.

  4. #4
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,773

    Default

    Ian can probably use one of Kate's fashion hats to conceal an antenna and face East so he can listen to the BBC. You may have to add some sort of amplification to do that Ian. Perhaps a Kite attached to that hat worn in a lightning storm might juice it up a bit. Ala Ben Franklin' experiments
    I am definitely not a pro plumber, but I am a pro crastinator

  5. #5
    Jack of all trades DonL's Avatar
    Join Date
    Mar 2011
    Location
    Houston, TX
    Posts
    3,662

    Default

    If you have gutters on your house then you can use them as an antenna.

    Sometimes you can use the telephone or electrical wiring in your house as an antenna.

    But you need some type of antenna to make it work.

    You can use a Cat Whisker detector.


    Have a good day.


    DonL
    Theory only works perfect in a vacuum.

    Cyber Security Protection for Windows C:\ > WWW.WinForce.Net

  6. #6
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,773

    Default

    Ah, that was the term I could not remember. Cat Whisker detector. thanks Don
    Last edited by BobL43; 07-18-2011 at 09:43 AM. Reason: correct alcohol influenced spelling
    I am definitely not a pro plumber, but I am a pro crastinator

Similar Threads

  1. Skiing at Crystal Mountain, WA
    By Terry in forum Terry's Corner
    Replies: 11
    Last Post: 05-05-2013, 06:52 PM
  2. Antenna installation
    By acwilli in forum Electrical Forum discussion & Blog
    Replies: 17
    Last Post: 03-31-2009, 06:59 PM
  3. On the radio Wed 8:00 AM KISS 106.1 FM
    By Terry in forum Terry's Corner
    Replies: 1
    Last Post: 07-13-2007, 08:02 AM
  4. Antenna and lead - vent
    By jadnashua in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 15
    Last Post: 09-07-2006, 05:46 AM
  5. My new radio ad
    By Terry in forum Toilet Forum discussions
    Replies: 4
    Last Post: 03-17-2005, 12:42 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •