This robot uses AI to find Waldo, thereby ruining Where’s Waldo | 19mm Momentary Push Button

In the old days, waaay back in the 20th Century, you’d buy something from a vendor that had a good reputation. It was in their interest to keep their reputation, because that’s where customers came from, so they’d make sure to only buy their materials and parts from reputable suppliers. And they’d do the same, forming a chain of reliability and trust built up through experience and everyone’s mutual need to keep up a reputation.

Heating is a function of power loss, which varies by the square of the voltage drop and inversely with the resistance. Current is a fallout of the voltage drop across the resistance. While typically stated as I*I*R losses, getting that “I” to be a big number with a low input voltage means that R has to also be low, which decreases power. Requiring a low R for the heating element magnifies the power losses in the rest of the circuit, where heat isn’t desired.

If I scan a ceiling and I find a cold spot that doesn’t make any sense, I dig into it. Maybe it’s a plumbing leak from above, or maybe it’s just a cold water line that’s touching the ceiling. That’s where a moisture meter comes in handy. Ok, I’m getting sidetracked. Let’s discuss some electrical examples.

If existing nominees don’t get confirmed before this congressional term concludes, they will have to be renominated by the White House in the new year. McConnell has emphasized that getting as many nominees through as possible is one of his key priorities this term and the next.

Opto-isolated TRIAC is fine and dandy, but there is no fuse, so if you overload it, you have a cooking TRIAC in your junction box …

hmm, not sure why my comment went in the wrong place. looked like it was in the [ GuruBuckaroo] comment, when I pecked it in. The “unusual sensation” quip was spot on & funny!

Beside the Canadian electrical code require fully dedicated 20 amps circuit for 120 volts vehicule charging. Common receptacle are week and cheap and are worn by abuse plugins and pulling all sorts of appliances in and out.

[It looks like I’m on meds with all my grammar and spelling errors in the post – and I am actually Pain meds and muscle relaxant for a evil frozen shoulder….]

L2 EVSE (preferably hardwired) is much safer, plus much better experience. Don’t have people say: “Why isn’t my car charged, it has been an hour?”

China needs to sort it’s shit out. Eventually, they might, then that’ll be OK. They may evolve the same way the West did til their business standards are reputable. Of course, that all happened to the West around the 19th and 20th Centuries. Since then, in the West, corruption has increased, and political bodies are bought and paid for by gigantic mega-corps, seeking monopolism and every other bent tactic they can try, for an eternally increasing share price.

i have 300w 12v silicon heat bed i just use a 700w pc power supply and 70A relay it heats bed over 100 oC in about a minute no problem

Yes, unfortunately, in my house the car isn’t in the basement. I work cheaper than most electricians, but nowadays they hardly do anything for $300. My Neighbor across the street paid for a 1/3 hp 110 volt outlet for his pool mandated by the town to be installed by a licensed electrician in this town, and it cost him $1400 for a simple direct buried UF 14-2 cable and a faceless ground fault on a dedicated 15 ampere circuit. That was more than the pool and filter. It would have been $1500 but he saved $100 by digging the trench himself..