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How to Sell Circuit Boards for Scrap | It Still Works

Call the electronics recyclers. Ask what parts they take and how much they pay for circuit boards. Ask whether they buy used computers that are still assembled or whether you first need to remove the circuit boards. You may be able to sell other computer parts too, including older ones.

We Buy Circuit Boards - The Refining Company

We buy circuit boards from any device and pay you for the precious metals (such as gold, platinum, silver, and palladium) found within them.We buy circuit boards from computers, cell phones, telecommunication equiptment, servers, military equiptment, car electronics and many other sources.

Spare Parts List

22 86003250 1 CIRCUIT BOARD, SOL/FLOAT WIRED 23 86276880 1 SCR, 1/4-20 X 3/8 HHCS SS ... 3/8 CIRCUIT BREAKER 35 86004860 1 KEY, SWITCH 36 86255900 4 STANDOFF, 6-32 X 5/8 HEX NYL ... 86400380 Spare Parts List - Saber Cutter EURO 24V Standard 17 Lift Handle Linkage REF PART NO. QTY DESCRIPTION SERIAL NO.

Solder Paste Stenciling - SparkFun Electronics

A few stenciled PCBs and you'll see just how not-mission-critical this is. We've had really good results with 0603, 0.5mm pitch QFNs, and BGAs! If you can't readily find a solder paste squeegee, we've used razor blades with pretty good results. The solder paste is stored in the Tupperware container and that is in turn stored in a zip lock bag.

Buy iCircuit - Microsoft Store

There is no reason I need to waste the CPU cycles and battery life by simulating the circuit constantly when I'm building the circuit. Sometimes with complex circuits the simulation will make the interface sluggish. On IOS I can switch the sim off while I'm modifying big circuits to avoid this issue.

Recycle Old PCB Components: 8 Steps - instructables.com

Sometimes SMT components are epoxied to the backside of boards, and you have to break the epoxy while heating all the leads on the component, I use dental tweezers, lots of solder, and a hot iron. I've used hot air pretty extensively in repair, and its probably the most dangerous/easiest to mess up badly.

Simple Styrofoam Hot Wire Cutter: 10 Steps

Simple Styrofoam Hot Wire Cutter: I made my own styrofoam hot wire cutter using just scrapped stuff. I haven't purchased anything specially for this build, as I had everything lying around my house, so I cannot give you any prices for the materials. The idea is that anyone could m...

Solder Paste Stenciling - SparkFun Electronics

A few stenciled PCBs and you'll see just how not-mission-critical this is. We've had really good results with 0603, 0.5mm pitch QFNs, and BGAs! If you can't readily find a solder paste squeegee, we've used razor blades with pretty good results. The solder paste is stored in the Tupperware container and that is in turn stored in a zip lock bag.

Buy iCircuit - Microsoft Store

There is no reason I need to waste the CPU cycles and battery life by simulating the circuit constantly when I'm building the circuit. Sometimes with complex circuits the simulation will make the interface sluggish. On IOS I can switch the sim off while I'm modifying big circuits to avoid this issue.

Simple Styrofoam Hot Wire Cutter: 10 Steps

Simple Styrofoam Hot Wire Cutter: I made my own styrofoam hot wire cutter using just scrapped stuff. I haven't purchased anything specially for this build, as I had everything lying around my house, so I cannot give you any prices for the materials. The idea is that anyone could m...

8 Common Electrical Mistakes Homeowners Make

cookie_cutter / Getty Images . ... these inexpensive devices protect electrical connections while containing sparks or heat should a short circuit occur. Installing a plastic or steel box adds a step when putting in a new outlet or light fixture, but the actual cost of the box is only a few dollars. ... Failing to Support a Receptacle or Switch ...

Safe Circuit Design | Electrical Safety | Electronics Textbook

Safe Circuit Design Chapter 3 - Electrical Safety ... a detection of current imbalance can be used to trigger the opening of a disconnect switch, thus cutting power off and preventing serious shock: ... The AFCI contains electronic circuitry to sense this intermittent resistive short circuit. It protects against both hot to neutral and hot to ...

Printed circuit board - Wikipedia

Printed circuit boards were introduced to reduce the size, weight, and cost of parts of the circuitry. In 1960, a small consumer radio receiver might be built with all its circuitry on one circuit board, but a TV set would probably contain one or more circuit boards.

Buttons and Switches - all products - SparkFun Electronics

Switch Contact Block - 1.5A 250V In stock COM-15063 This is a single pole switch contact block for use with an assortment of emergency stop switches including those listed as ho…

Fault Finding Electrical Circuit: RCD Tripping | SparkyHelp

Test each circuit from the distribution board with your insulation tester. Disconnect the faulty circuit. Close the Board. Restore power to the main switch. Proceed to find what parts of the installation has no power. Test all equipment on that circuit. Remove the faulty equipment. Isolate the Main Switch. Re-connect the Circuit that was faulty.

Affordable PCB Etching System with Agitator and Heater

Low Cost PCB Etching System with Agitator and Heater Now with a new, improved 350 watt quartz heater! Our affordable PCB etching kit is everything you need to create your own etched circuit boards yet is easy to use and easy to assemble. You can producte a fully etched PCB in as little as 4 minutes.

Pump Controllers - All Pumps Sales & Service - Leading ...

Warnings are; Audio (buzzer), Visual (LED Pilot Light and/or Strobe). The Buzzer can be muted via a mute button. If not muted the Audible buzzer will automatically silence after 5 minutes. If a continuously sounding audible alarm is required, this can be done by changing the Jumper position on the circuit board (See FIGURE 1).

Affordable PCB Etching System with Agitator and Heater

Low Cost PCB Etching System with Agitator and Heater Now with a new, improved 350 watt quartz heater! Our affordable PCB etching kit is everything you need to create your own etched circuit boards yet is easy to use and easy to assemble. You can producte a fully etched PCB in as little as 4 minutes.

Ten Rules for Jumper Wires - Circuit board rework and repair

If a jumper wires passes over an unused land or pad sufficient slack should be provided so that the jumper wire can be moved out of the way should a component need to be added. Jumper wires should not pass over pads or vias used as test points. Once jumper wires have been added to a circuit board, the less they are disturbed or moved, the better.

Troubleshooting Hot Tub Circuit Boards - SpaCare

Troubleshooting Hot Tub Circuit Boards. Troubleshooting Tips For Hot Tubs With A Circuit Board ... Power the circuit board down, then unplug the pressure switch cable from the circuit board revealing two pins. Power up the system. As soon as the low/filter pump turns on, jump the two pressure switch pins on the board with alligator clips. ...

Replacement Parts for Hot Tub and Spa Circuit Boards

170 items displayed. Hot Tub and Spa Circuit Board Replacement Parts. The hot tub circuit boards shown below are the ones commonly needed. If you need a spa circuit board that is not listed here, contact us for availability and pricing. If your spa controller is more than 3 years old, we recommend replacing the spa controller rather than just the circuit board.

E-Waste More Information

On January 1, 2005, California consumers began paying a fee of $6 to $10 at the time they purchase certain video display devices. Those fees are deposited into a special account that is used to pay qualified e-waste collectors and recyclers to cover their costs of managing e-waste. The Electronic Waste Recycling Act has two main objectives:

FOAM CUTTER PLANS AND INSTRUCTION - Utah Flyers

FOAM CUTTING . A one piece jig is an airfoil shaped hole in a piece of wood. ... the brackets or squares by covering them with clear or duct tape except for on the edge that touches and guides the hot cutting wire so there is little chance of you making electrical contact with the cutting wire. ... Draw a parallel line to the cutting board line ...

PCB Basics - learn.sparkfun.com

One of the key concepts in electronics is the printed circuit board or PCB. It's so fundamental that people often forget to explain what a PCB is. This tutorial will breakdown what makes up a PCB and some of the common terms used in the PCB world. Over the next few pages, we'll discuss the ...

Nichrome wire and transformer selection - Jacobs Online

Larger diameter wires are also used for very long cutters such as 8 or 10 feet. The Tension Factor . All metals expand with heat so the nichrome wire at cutting temperature also expands and gets longer. Because of this, some method of keeping tension on the wire is needed in hot wire foam cutters.