Added: 2 years ago
From: harbor976
Views: 7,528
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  • WOW!!!!, My friend, the envelope capacitor design made my mind explode!!! Very nice design I am going to build one for my wife, who likes to listen to AM broadcast news overnight while she sleeps. (I have gotten used to it, and I wake up smarter). This will solve the issue with reception strength. thanks!!

  • Top draw stuff this!..Excellent variable cap design, liking the tapped turns feature to give a bit more selectivity. Good job!

  • Excellent vid! Great idea for tuning capacitor!! Could this antenna be used for low power transmitting on the am broadcast band?

  • Once again.. thank you .. my hat is off to you..

    I used a 30 inch square which is 120 feet in 10 turns.

    your envelope trick is great.

    I used on long length of aluminum foil folded long enough for both envelops.

    I then folded them over..

  • oo so wire glue is a fine replacement for soldering? of course, for LEDs/resistors and such?

  • Very innovative variable capacitor design! Thanks for sharing this project.

    73, Bill, KI7F

  • Fine project! What is the approximated value (in uF) of the variable capacitor?

    Thanks

  • taper the foil in one of the envelopes to make tuning easier.

  • Very interesting!  I might try this myself.

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