A Dynamite Antenna for an AM Radio

 by RangerJ
Tyvoli.jpg
I am probably not the only person who listens to AM radio, so this might come in handy for somebody else.

Back in the day, radios were AM only, and if you wanted to listen to your favorite programs you had to have an outside antenna. With the advent of the transistor radio, there soon ceased to be any way for you to connect your radio to an antenna. Most of the time, admittedly, the internal antenna worked well enough anyway. But not for everybody.
 
Remove these adsRemove these ads by Signing Up

Step 1: Weakest is Best

sangean.jpg
If I am left alone with an AM radio, the first thing I usually do is tune around the band until I find the weakest station there is, then I listen to see where it is coming from. But without an external antenna, the station isn't usually all that far away.
 
But even if I put up an outside antenna, what good is it without a way to connect it to the radio?

Well, this antenna doesn't have to connect to the radio.

I know that sounds too good to be true, but it is true. The signal, gathered by the long wire antenna is inductively coupled to the radio's internal ferrite antenna.
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!