Here's a an easy to make, dollar store DIY spy microphone that lets you listen from afar and bring the sounds up close. From Make Magazine Volume 14
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Build a simple carboard magnet generator
How To:
Build an iPhone/iPod charger cable
How To:
DIY Stick Welder from Old Microwave Parts
How To:
Make a satellite dish Wi-Fi antenna for free internet
How To:
Fix Dead Lithium-Ion Batteries That Won't Hold a Charge Anymore
How To:
Light a light bulb with a potato battery
How To:
Hack Your Electricity Meter
How To:
Make a Super Cheap One-Way Check Valve
How To:
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How To:
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How To:
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How To:
Build a mini hovercraft with household items
How To:
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How To:
Lock and Unlock a Safe
How To:
Mod Your Old iPod 30-Pin Dock into a Bluetooth Speaker for Your iPhone 5
How To:
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How To:
Make a high speed photography trigger with an Arduino
How To:
Build a weatherproof compact high gain WiFi antenna
How To:
Hack Christmas Lights for Custom Holiday Lighting Patterns
How To:
Open a power supply without destroying a transformer
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