5 to 30 Dollar Security DVR If you use a raspberry pi Zero they are running 5 bucks + old web cam. Not a bad deal for a DVR. At this time all the software is free. Links below: ccrisan/motioneyeos http://github.com/ccrisan/motioneyeos Wiki http://github.com/ccrisan/motioneyeos/wiki Down load http://github.com/ccrisan/motioneyeos/wiki/Supported-Devices Installation http://github.com/ccrisan/motioneyeos/wiki/Installation Amazon for the hardware : http://amzn.to/1W0uBt7 Just get any Raspberry pi .. Pi zero is 5 bucks when in stock. …
antenna
Homebrew Temporary lightning arrestor
In the past I have just used spark plugs too. How it works: Once the air has ionized, it becomes a conductor. And the dielectric breakdown of the air makes it a conductor and will pass the static charge/lightning strike to ground. Its kind of a one shot deal and it’s better than nothing. Its mostly for the static build up on the wire in the storm. Sharpened…
How to Solder copper wire to aluminum foil.
How to Solder copper wire to aluminum foil. I will be making some disposable variable capacitors later today for some magnetic loop antennas. This is also a useful technique to solder copper braid to an antenna. I think you can use any oil. the important thing to remember is keeping Oxygen form the foil. You don’t want it to oxidize before you get the solder down.
Emergency Ham Radio Station
It’s indoor and stealth good for getting info when the power is out or a natural disaster has happened. Stealth Antenna is good when you can’t set one up outside.