Radio Transmitter made out of Junk

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
91,379
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Jan 20, 2008

Here's my adaptation of the K7NS zinc-oxide negative resistance oscillator in a crystal-controlled AM BC-band transmitter.

Category:

Science & Technology

Tags:

License:

Standard YouTube License

  • likes, 3 dislikes

Link to this comment:

Share to:

Uploader Comments (ranickel)

  • Cool

    How far does it transmit?

  • @rocketman221projects - I'd say 100 feet is about the limit, and that's pretty much what the FCC allows as well.

  • If you got to Picasa and search for "Zinc Negative Resistance Oscillator" the schematic should come up.

    The ZNRO is a neat science project, but can be tricky to adjust and may not be stable for long periods.

    For those who want a "real" AM transmitter for home broadcasting, etc., there are plenty of plans on the internet and kits are available from various manufacturers. Have fun!

  • Thanks for the question, but this technology is not stable or suitable for RC purposes. You'll want to use a system designed for radio controlled cars - google will show many sources.

  • What song are you playing bob? I like that old music, I've heard that song before but could not place it?? enjoyed your video on ZNRO's I also am a ham radio guy, and enjoy older Boat anchor radios, like the Heathkit's ect.. Thanks for posting !!

    zach

  • @bigred109 - That's ""Wild Weekend" by the Rockin' Rebels. It was originally the theme song for the Tom Shannon radio show on WKBW Buffalo, so it's got a bit of a radio heritage too! You can find the whole song on Youtube.

Top Comments

  • too bad the professor didnt know this on gilligans island. lol.

  • Do you play requests???

see all

All Comments (109)

Sign In or Sign Up now to post a comment!
  • Why only 100 feet? How do you make it go farther?

  • cool!

  • That's awesome dude !

  • Wow I can't beleive I missed this over the years. This is one of the coolest vids I have seen in a while.

  • Hmmm ... Tube, transistor, or, Tunnel diode ... thx for the vid!

  • Do you play requests??

  • now i will like to put this in my car .... :@

Loading...

Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more