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Cool Circuits & Projects

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24 items
Last updated on Apr 12, 2018
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40W Peak Crank Generator With 100F Ultracapacitor Bank
18:27
HOMEMADE METAL DETECTOR ~ Simple & Sensitive(Schematic)
28:54
Infrared Remote Control Activated LIGHTS & APPLIANCES
8:49
DIY Wireless Headphones (Infrared)
14:25
Homemade Benchtop Power Supply (1.28V-30VDC/Up to 3A)
15:38
Homemade Telescope Solar Filter (Meade/Celestron)
3:20
Drafting Light Panels for FREE(Various Sizes)
7:30
Trigger, Then Short Delay, Then Brief Pulse V+(555)
6:39
12VDC or 120VAC Dark Activated Relay Timer Circuit
13:43
DIY Magnetic Levitation Organizer/Holder
7:03
How To Make ARDUINO TV-B-Gone
11:05
SIMPLEST Telephone Landline Tap - Listening Device
3:42
PIR ~ Infrared Motion Sensing Circuit / Night Use
4:50
How To Make 2 Coil Metal Detector!
9:20
Power Failure Lighting Circuit(Emergency Lighting)
14:20
How To Make A Plastic Bag Heat Sealer Using An Old Laser Printer!
8:41
Simple Hall Effect Latching ON/OFF Relay Switch Circuit
3:46
DC Dimmer Circuit (3/6/9/12V)
7:24
DIY LED Strip Lighting From Broken Laptops
25:41
Modified 15 MILLION CP Spotlight(Quartz Halogen/LED)
12:25
DIY Homemade Regulated AC Power Supply + More
16:01
Old Computer HDD Hack!
11:44
Turn A Microwave Oven Cooling Fan Into Generator!
21:23
REFILLABLE SPRAY CAN For Penetrants/Pesticides/Air/Paint
18:22