![]() See the site below for alternative earphone suggestions. Metal to metal.Īs mentioned above the earphone is critical and should be high impedance. It is very important that all connections be good. A good ground can be metal pipes buried in the ground, water pipes usually work. The farther away the nearest radio tower, the higher the antenna needs to be. The pencil should be fairly sharp and won’t scratch through the oxide. Heating the thin steel razor blade oxidizes it. It’s the same principal used on most firearms to slow rusting. The bluing on the original blade was a thin form of oxidation used to keep it from immediately rusting. Gift the gift of Make: Magazine this holiday season! Subscribe to the premier DIY magazine todayĬommunity access, print, and digital Magazine, and more Share a cool tool or product with the community.įind a special something for the makers in your life. Skill builder, project tutorials, and more Get hands-on with kits, books, and more from the Maker Shed Initiatives for the next generation of makers. Membership connects and supports the people and projects that shape our future and supports the learning.A free program that lights children’s creative fires and allows them to explore projects in areas such as arts &Ĭrafts, science & engineering, design, and technology.Microcontrollers including Arduino and Raspberry Pi, Drones and 3D Printing, and more. Maker-written books designed to inform and delight! Topics such as.or you can pick up a pair of old Brandes (antique, but can be had cheap. The high impedance earphones are available rather cheaply from The Crystal Set society. It'll need a long wire ant and good ground. A smart collection of books, magazines, electronics kits, robots, microcontrollers, tools, supplies, and moreĬurated by us, the people behind Make: and the Maker Faire. the foxhole is just a crystal radio using the iron oxide (or what ever that blue coating is) and the graphite in the pencil to form a diode.Together tech enthusiasts, crafters, educators across the globe. ![]() ![]()
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