If you're going to build your own magnetic loop antenna, you'll need some capacitors to tune and adjust the loop.
In this video, Mike (M0MSN) shows us how to build a butterfly and a two plate capacitor for a DIY magnetic loop antenna system.
This project will allow you to fully control the tuning process for your homemade loop antenna.
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=flJkCNMdpuc.
Here are some comments from Mike (M0MSN):
How to build your own Variable Capacitor, Time to finish this build. In this upload I build a slipring connector and Setup a Butterfly Capacitor, and put tuning knobs on them...
Take a look at 
• HAM RADIO: Building a Variable Capaci...
Sheet of aluminium (I used 2mm thick)
6mm OD aluminium tube (1mm wall)
JigSaw with a fine metal cutting blade
Scroll Saw and Blade
Metal File
M4 Threaded bar
M4 Nuts
and lots of time, lots of time.....
I do hope you enjoy it and subscribe for more..
Many thanks
Mike - M0MSN
To get notified of the next upload .click that bell and subscribe..
• HAM RADIO: Building a Variable Capaci...
Sheet of aluminium (I used 2mm thick)
6mm OD aluminium tube (1mm wall)
JigSaw with a fine metal cutting blade
Scroll Saw and Blade
Metal File
M4 Threaded bar
M4 Nuts
and lots of time, lots of time.....
I do hope you enjoy it and subscribe for more..
Many thanks
Mike - M0MSN
To get notified of the next upload .click that bell and subscribe..Transcript
Follow along using the transcript.
Mike-M0MSN
17.1K subscribers
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).
