Ring Variometer

door cheungbx

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Beschrijving

Create a Ring Variometer with a half ferrite ring that can be used in a Crystal radio or as an antenna tuner, or as a wave trap.

Check out my blog for detail instructions of how to download the 3D models to print out the parts, and where to order the parts.
http://billydiy.blogspot.com/2020/10/3d-designed-ring-variometer-this-is-3d.html

Checkout my Video for demo and instructions
https://youtu.be/u2V1u8saGVo

Tags

#crystal radio