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ARE ELECTRONICS FLEA MARKETS A THING OF THE PAST?
There used to be a half dozen or more regularly occurring electronics Flea Markets/Swap Meets on any given weekend in So Cal, and many more across the country. All manner of computer parts, radio gear, bench equipment, cables, power supplies, wire, components, equipment carcasses, and other assorted useful junk was sold, traded, or given away to a good home. It seems that Craig's List, eBay and others have taken it all online and many local Flea Markets have withered away and become part of electronics hobbyist history.
Are there any regular Flea Markets still going on in your area?
What are some of the gems that you've picked up at a local Flea Market?
Has something been lost or is the experience now better finding things online?
Also, be sure to check out LabNation, your newest Cool Reads sponsor!
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This universal relay board will allow you to drive a 12V DPDT relay using heat, cold, light, dark, sound, logic-level voltages, and just about any varying resistive output sensor you can think of.
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TIME AFTER TIME: A NUTS & VOLTS DESIGNER'S GUIDE TO RELIABLE OSCILLATORS AND TIMERS
Electronic designers are familiar with the apparent perversity of Nature in the tendency of amplifiers to oscillate and oscillators to amplify.
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BETTER THA
N YOUR EX!
Tired of being wired?
Still using your old bulky benchtop scope?
Take a fresh start with the SmartScope:
- 100% mobile with single wire connectivity
- Compatible with laptop, tablet & smartphone
- Intuitive touch interface
- Benchtop performance in your pocket
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CHANNEL SURFING WITH AN ARDUINO
The Arduino is perfectly suited to emulate the IR remote controls associated with many modern appliances. If your TV recorder and tuner are different devices, this will allow you to change channels between scheduled recordings on whatever schedule suits you.
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Help A Brother (or Sister) Out?
Stop by our Tech Forum and weigh in. We know y'all got skills and opinions. This is the place to share some knowledge or get some.
Desktop Pi?
Has anyone successfully replaced a desktop PC with a Raspberry Pi?
GFI Tester
I'd like to know how to test the GFI to see if it has gotten weak or ...
Auto-Headlights
I would like to build a DIY auto headlight on/off switch ...
Video Signal Synchronizer
Relatively inexpensive video surveillance systems can display multiple images on a single monitor, so ...
Tube Tech
Is there any "technical" difference between tube amp distortion and ...
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SMILEY'S WORKSHOP #62
Arduino Handheld Prototyper - Part 3
Use the Arduino handheld prototyper to design a fresh air controller for your castle, or wherever you call home.
Read It Now!
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Book Pick Of The Week
From the Nuts & Volts Webstore
If you're looking to build your library with educational books that teach by doing, then this one's a no-brainer! Not that having no brains is any kind of pre-qualification for owning the book, just that reading it is only half the experience. Doing the stuff is where the real fun begins... Just say'in!
- Safely solder, join wires, and connect switches
- Identify components and read schematic diagrams
- Understand the how and why of electronics theory
- Work with transistors, LEDs, and laser diode modules
- Power your devices with A/C supplies, batteries, or solar panels
- Get up and running on Arduino boards and pre-made modules
- Use sensors to detect everything from noxious gas to acceleration
- Build and modify audio amps, microphones, and transmitters
- Fix gadgets and scavenge useful parts from dead equipment
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For the Electronics Hobbyist
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For the Robotics Innovator
Use Promo Code
M60ENLB
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