Variometer for Crystal Radio
thingiverse
This is an Essential Device for Tuning Crystals in Radios. It's Utilized to Optimize Crystal Radio Reception. A Basic Circuit Diagram is Provided Below - Feel Free to Enhance Its Performance by Making Modifications. The Conductive Component is a Length of Copper Wire (22 AWG Magnet Wire). Holes have not been Drilled for the Wire, So You'll Need to Accommodate It Manually. In Addition to the Wire, You'll Require Four 0.125 in. Bolts and Nuts, as well as a 1/8 in. Conductive Rod for Successful Assembly. Good Luck with Your Project - You'll Probably Need It! This Design was Exported in Millimeters, So Be Sure to Scale it Up Properly (10 Times or 1000 Percent).
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