Latest threads in Electronics Designshow only best voted threads

Subject Author Posted Replies
 
Good day for the lil guy (hardware design)
Some libs are annoyed that Dominion "sold out" by settling with Fox, that's dumb. They're not regulators and they speak the same language Murdoch speaks (and probably the only one his ilk understands)...
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Digikey degrading
A recent Digikey parts search, sorted by price, starts with thousands of "marketplace" products priced at 0.01 and not in stock. And they feel free to ignore search constraints... not that their...
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Two transistors, same number, different sizes?
I have a 500W switched mode power supply and a pair of J13009 transistors have failed. I mistakenly thought a J13009 was a J13009. What arrived was TO220 instead of TO247. Can J13009 really have two...
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The Very Fast Plane Company, Inc.
And other such company names. Latest example: we've been buying nice shiny laser-engraved boxes from in Shenzhen. Cheers Phil Hobbs
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Re: OT? Germany Shutting Down Nuke Plants
In Germany, the governments taxpayer money on educating the workforce, and the more productive work force this produces lets Germany exort as much as the US despite having about a quarter of...
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triggering things with ethernet
Suppose one were to send a broadcast packet from a PC to multiple boxes over regular 100 Mbit ethernet, without any fancy time protocols like PTP or anything. Each box would accept the packet as a...
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Bald Eagles per Jelly Doughnut
I often get frustrated when having to do calcuations that involve imperial units, especially anything to do with specific heats. These are some of the most metric resistant values, in common usage. I...
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disincentive to conserve
people could sell power to rich neighbors, or charge their cars. Or set up a lot of grow lights. Keep their pools nice and warm all winter. If you earn more, you pay more. That’s the basic idea...
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Only one EV charger at home?!
"Some products will have the ability to “load share”, which means they will communicate with each if two vehicles are plugged in. In this scenario, they will evenly split the power available so...
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How many Watts to heat 0.25 cuft of air 12*F above ambient.
I have ordered four 12V 12W Flexible Polyimide Adhesive Hot Foil Heating Film. If I wire two in series and then put that in parallel with two more in series and run it on 19V, (solving my 19V problem)...
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Reducing voltage of laptop power supply
I have a Toshiba 3.4A, 19V laptop power supply that I want to reduce to 12V. Is it as simple as finding a 19V zener and changing it to a 12v zener? Thanks, Mikek
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Why do EVs not use the full 3.12kW from a mains socket?
In the UK, "most vehicle manufacturers limit the current drawn from a standard domestic 3 pin socket to 10A or less, which equates to a maximum of 2.3kW." Why? A UK socket is 13A, or 3.12kW.
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I knew it!
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Lithium batteries, not worth it
Are you greenies nuts? 3 grand for a battery with the same capacity of two deep cycle lead acid batteries costing £150? https://www.ebay.co.uk/itm/385430139122Nearly...
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You might enjoy this. I certainly did.
SOLVING the Mystery Behind a Soviet Spy Bug : A True Masterpiece of Technical Elegance! <> How did a Mysterious Microwave Bugging Device operate secretly for SEVEN YEARS inside the US Ambassador's...
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