free radio-the venerable crystal set

Discussion in 'Communications' started by MountainRon, Feb 21, 2011.

  1. MountainRon

    MountainRon Newbie

    It uses absolutely no energy, doesn't have any electromagnetic emission and can be built with scrap metal. The crystal radio is one of the very first designs in radio receivers and was the only way the early stations could be heard. An early tube set often cost several months pay. You can build a set to pick up Am as well as SW. The circuits aren't that complicated and as a matter of fact I built my first one when I was 10 years old. There is a lot of information on the web and the parts are relatively cheap. I just had my combo AM/SW set with me on a several week expedition to southeast Arizona. I picked up all kinds of good stuff late in the evening. The hardest part was driving my ground rod into the caliche.:) It may be an idea for at least hearing whats going on when energy is scarce. By the way I loaded a bunch of articles here for free download; Crystal Radio-free radio
    Last edited by a moderator: Feb 21, 2011
  2. BillM

    BillM BillM

    You are

    You are giving away your age !

  3. sailaway

    sailaway Well-Known Member

    Mountainron, you've dredged up a childhood memory of finding my dads crystal radio, never did figure out how it worked only had part of it. Also went to Radioshack 2 years ago looking for a Heathkit SW Radio they don't sell kits anymore. In this age of instant gratification you just get a cheap transister one and plug it in.:scratch Thanks for the up load sites.
  4. geoffreys7

    geoffreys7 Well-Known Member

    Your post brought back fond memories of my late father teaching me how to build one as a kid in the 60's. Thanks for the memories... :wave:
  5. MrSfstk8d

    MrSfstk8d Well-Known Member

    Wow, well my dad learned to build his in the 50's. Then he tought me in the 80's. Guess it runs in the family. (We did both, of course, graduate to much larger rigs, lol)
  6. efbjr

    efbjr Well-Known Member


    Heath was a separate operation from Radio Shack. You could order from their catalog, or go to one of their retail stores. I built several of their kits and found them to be a good value for the money spent, easy to assemble, and of nearly indestructible construction. They went out of business years ago, probably due to the influx of cheap microprocessor-based electronics. Much of the Heathkits were based on the older, but reliable, tube-based technology.

    If you want to pick up some of the Heath equipment, check out the Amateur Radio "Hamfests" that are held around the country. Lots of good, reasonably priced equipment available, both tube-based and semiconductor-based gear.
  7. mrbean50

    mrbean50 Member

    it's easy and cheep 14 or 20 gauge wire oat meal box, a crystal , wire for antenna and a ground ear phone kit (see internet for all this) picks up local AM in daytime 800 miles + at night , it's great , 73 KJ4QNR MRBEAN50 post script go to
    Last edited: Jun 9, 2011
  8. mrbean50

    mrbean50 Member

    crystal radio set

    go to MidnightScience ( crystal set society ) they are great people nice kits and info 73 KJ4QNR mrbean50;)
    Last edited by a moderator: Jun 9, 2011