Pass Laboratories XA200.8 monoblock power amplifier | 25 Amp Circuit Breaker

The remote has a few buttons and LED for status. The LED reacts differently depending on the pool’s current mode, so connecting there not only gives you control but also allows you to provide some limited status. It isn’t going to let you monitor pump currents or anything exotic, but it is a simple place to gain access. Using the Arduino pulse input function makes it easy to sense if the LED is on, off, or blinking. Another sensor reads the water temperature. The controller makes it available, but it isn’t simple to read, so the project just reads the raw sensor voltage from the existing thermistor and computes the temperature.

A steamy day on the flat roof of a building will let you feel how many inches the 480 can sting your fingers from also.

99% of the time you can’t even begin to sue because fakes were often dumped and mixed in throughout the supply lines so it’s nearly impossible to track it back to the factory that made the fake. And even if you could find the original factory, international lawsuit rarely works out.

The Sony Alpha A33 lacks one feature found in the A55V (the only version of the A55 that’s sold in the US market) — a built-in GPS receiver. It’s still possible to geotag images and movies from the A33, but doing so will rely on an external GPS logging device and PC software that can backtrack to calculate the location at which images and movies were shot — not nearly as seamless a solution as the A55V’s ability to geotag images and movies straight out of the box.

When building my printer, I also didn’t like the then state-of-the-art heated PCBs. Thus, I ordered a bespoke silicone heater mat from China, mains voltage, 400 Watts of heater power. Add an aluminium plate to the top and ground it, and safety will be sufficient. I use an SSR embedded into a wall-wart form factor project case with plenty of snubber circuits. Cons: More expensive than a PCB Pros: Heats up incredibly quickly, reasonably priced, won’t get damaged by prolonged high temperature, easy to make non-life-threatening.

And don’t trust the 15KV gloves you pick up a Dayton Hamvention for $20. There’s a reason they’re so cheap, unless you certify them they’re just as bad as having nothing at all due to unknown defects and misplaced trust.

My friend died of electrocution while on the job. Our mains voltage here is 240V (single phase) or 415V (three phase) and not very forgiving.

As for anti-static grounding, proper setups aren’t ‘hard grounded’. For reasons of safety they have resistances in the megohm range, (usually distributed resistance), between the technician and ground.

Very nice hack and well documented, safety issues included. For all the rest of the naysayers, you are far more likely to die driving your electric car than from a charger failure yet most people think nothing of jumping in the car despite it being one of the leading causes of death in the US.

You need to learn how to read a datasheet and understand the terms – without an understanding it won’t do you any good.

• Calculate how much power you need: Generators are sized based on the power they provide an average home. Go through your home and identify the lights, electronics and appliances you want to run and the watts they consume. That’s simple enough to figure out with lamp or light fixture that takes a 60-watt bulb, and tougher to determine with your refrigerator. Aiello says to look for the data plate found on most appliances. It should tell you the volts and amps. Then do the math: Volts multiplied by amps equals watts. Or go online and look up the specs. Generac also has an online portable-generator sizing calculator you can use as a guide.

Certainly not as dull as a Golf. The estate, sorry Sports Tourer, with more rear space might even tempt me.