Latest threads in ⏚ Electrical Engineeringshow only best voted threads

Subject Author Posted Replies
 
High voltage demonstration
This is a high voltage demonstration using an inexpensive car ignition coil being driven by a variable frequency, duty cycle and amplitude 555 based mosfet circuit. Circuit schematic: Video of circuit...
 
(OT) AnonCoward - My home brew circuit; an adjustable coil driver
Here's my video: And this is the schematic to my circuit: Here's what you wrote about my initial post sharing the video: Now take a look at this other guy's Youtube post, especially his circuit board....
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Where do you source 35 Amp 220VAC circuit breakers that are NOT in typical box stores?
Where do you source circuit breakers that are NOT in typical box stores? o Carling AA3-B0-24-635-5D1-C (do you have a decoder for that number?) PG&E has currently cut the power to us in California...
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1500 mile e-car for Austin in UK non-toxic fuel cell
Sounds too good to be true, but maybe. British engineer and former Royal Navy officer Trevor Jackson, signed a multi-million-pound deal to start manufacturing the battery on a large scale in the UK.
 
Homebrew high voltage coil driver circuit video
Just a little demonstration... This is still a work in progress and I'll share other videos and further circuit designs as time allows for me to do so. If you have any questions or comments concerning...
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n00b question about "What is a phase?"
Hi, Would someone be kind enough to help me understand the difference between a phase and lines? I think that a phase is what is carried by a pair of wires, a circuit, that consists of a two lines or...
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Electric Grill (Smoker) thermostat IR drop?
The thermostat that plugs into my smoker has blue corrosion on the hot side of the wiring. The manufacturer insists that this is from using an extension cord. Why would that cause the...
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OT. Antenna tester
rbowman <> wrote in news:grrtamF1ctbU1 Pretty smart little presentation sheet. Cool job.
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UK power outage: Live updates
UK power outage: Live updates Full story: 6:24 Goodnight This is the end of live updates on the power cut across large areas of England and Wales, which affected nearly one million people. Homes and...
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Wind, solar, storage and back-up system designer. Free online calculator tool.
There are two links, the first to the designer free online calculator tool itself and the second link is to my blog post about the designer. Wind, solar, storage and back-up system designer for 100%...
 
Not exactly electrical
What do you guys know about OTA TV signals. How much are the affected by trees? Long story short I have a "70 mile deep fringe" reflector antenna 30 feet up, aimed right at a tower 30 miles away, flat...
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Rulew of thumb DC vs AC coils
Say you have a relay coil rated at 24VAC, is there a rule of thumb what the DC current might be to operate it? I do understand the residual magnetism thing.
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National Electrical Code 2020 Updates
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It's Never Too Late To Make Things Right
content://media/external/file/41166 Take Your Time, Do It Right. And Yeah Put A Little Class & Finess Into It, Or Have Someone Do The Terminations For You ASAP. ( No more nasty poorly finished jobs,...
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Measuring PWM current?
Can an RMS current clamp meter accurately measure the current of a PWM voltage? How else to measure PWM current without a shunt or direct in-line meter? Thanks.
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