Latest threads in ⏚ Electrical Engineeringshow only best voted threads
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How do you recycle solar panels?
On Sat, 13 Apr 2019 23:42:59 +0800, "Mr. Man-wai Chang" <> wrote: It is hard to recycle anything without pollution. If you have to ship it a 1000 miles or more to get to the recycling plant, you have...
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4 years ago
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MV Distribution w/Floating Neutral?
Hello, all. I was in Cedar Rapids, IA recently (I don't reside there) traveling along Rt. 100 (Collins Rd) in northeast of downtown. I noticed utility poles with a single cross arm accommodating 4...
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4 years ago
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Touch potential
I'm learning at least a little bit about touch potential. Most of what I've found is related to the guys who work on power lines. I did find this sketch of a guy touching a lamp post with 120 volts on...
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4 years ago
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Equipment grounding
I work for a company that sells center pivot irrigation systems. A common situation is the pivot and electric well motor are powered from a commercial utility. The electrical service is three phase,...
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4 years ago
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Function of Portable Generator Outlet Ground
Hello, all. As most portable consumer-grade AC generators don't have their grounds (frame and ground prongs on their mounted AC outlets) bonded to their neutrals, I was wondering what useful function...
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4 years ago
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Mil spec pots
I am looking for a couple off wet location/mil spec pots (25 and 500 ohm) Any ideas
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4 years ago
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DROP . . .BOX [an inexact cross-post from sci.math]
is my Dropbox link. Full although not a complete list of items [thoughts]. -Simon Roberts tinkerers
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5 years ago
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Wrong signs in three formulas of electrotechnics
Lorentz force formula F=qvB has been obtained by experiment. It can be derived from third Hertz's equation: rot E = -d/dt B - rot(v x B) if derived in such way it changes sign, F=-qvB. Another two...
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5 years ago
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Is Class 1 laser safe enough for baby eyes?
I meant, what if someone accidentally shine Class 1 laser into a baby's eyes? Would it hurt retina and leave a permanent damage? I know ... I know... it should NOT happen. Adults are supposed to be...
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5 years ago
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Dimmer for 4V LED
I have a 4V, 0.75A, 3W power adapter (120V input) that powers a single LED that is too bright. Is there a way to make or purchase a dimmer that could work on the low power side? Thanks
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5 years ago
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MV-to-LV Connection
Hello, all, and a question especially for those who work in AC power distribution: One is provided with two line-line MV (assume 34/19.9 kV or less) distribution lines (L1, L2) and a neutral (N). IOW,...
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5 years ago
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Fwd: Can LED bulbs be connected to a flasher?
-------- Forwarded Message -------- Subject: Can LED bulbs be connected to a flasher? Date: Mon, 14 May 2018 14:08:24 -0500 From: Organization: NNTP Server Newsgroups: A friend with a small retail...
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5 years ago
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jammer for 595-625 MHz
Could you help me to find this jammer, please?
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5 years ago
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URGENT Test for alternating current without multmeter
I have a lenovo n22 laptop. I am posting this message on it. I was watching i a youtube video when I realized that the ac/dc adapter was unplugged, whe n I plugged it back in, my laptop made a...
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5 years ago
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off topic cross post
an off topic cross post If you think you got it then either use it or lose it. don't expect it like it's your birthright. reiterating: 'use it or lose it' especially in the w ay your forefathers were...
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5 years ago
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