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For those of you who enjoyed my recent blog post on Circuit Duals and Magnetic Circuits I have now compiled a version of it in PDF if you want to keep a local copy or have it for reading on on an e-reader. Feel free to distribute the link.

drive.google.com/file/d/1fECh_

For those of you who are just now hearing about it the article describes the idea of Duality in math, how it applies to circuits, how to calculate duals for systems of equations, and a few examples of circuit duals. It also goes indepth on magnetic circuits as a dual of electric circuits. There is an interesting blurb at the end about how to extract energy from permanent magnets as well.

If you prefer the more colorful blog link instead, which will also be the only place I make corrections or update it most likely, the link for that is as follows:

jeffreyfreeman.me/an-indepth-l

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Anyone know good science or tech related accounts to follow on the fediverse? Looking for good follows, any other recommendations are welcome also #fediverse #biotech #science #mastodon #bitcoin

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feeling a heaviness, shit's getting heavy

maybe it's just market vol, but also feels like some spiritual vol that's starting to bubble up too
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▬▬▬.◙.▬▬▬
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█▄ █ █▄ ███▀▀▀▀▀▀▀╬
◥█████◤
══╩══╩═
╬═╬
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╬═╬ Just Dropped Down to Say
╬═╬
╬═╬ “You should relax this weekend”
╬═╬ ☻/
╬═╬/▌
╬═╬/ \,

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We got nothing to lose with trying a ivermectin+vitamins protocol. It is very cheap, affordable to produce, well tested, harmless and easy to administer to the population. And it seems to work wonders.

Why aren't politicians doing it? They don't care about our health At all.

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@Moon EVERYTHING DOWN! SELL EVERYTHING NOW AAAAAAAAAAAAAAAAAAAAAAAAAAA
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[RT @wrathofgnon]
“Servant of the machine, the man must become a machine himself, and thenceforth his work has nothing really human in it.”
— René Guénon

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@skells

1) at that price most irons will be the same low quality. They will get the job done but they will work against you. To start out its fine. But I do recommend you investing in a nicer one as soon as you are willing. A TS100 is the best and cheapest IMO at ~$75, a high end set is easily $500 or more, but the $75 one is surprisingly close to the high end ones in performance. Just keep in mind you get what you pay for and a cheap iron will mean headaches in the future.

2) Op amps dnt need an ac supply, the opposite they use a DC supply. Perhaps you are thinking of a dual rail supply? An AC source might be useful to play with an opamp, but not needed as you can feed it any signal including pulses of dc or whatever else you want to.

3) Yes, dont test if wires are live by licking them, I cant stress this enough!

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@11112011

Does larping a retard on the internet count?

@freemo PS soldering iron kit comes with multimeter, which seems suspiciously generous for under £30...

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Finally getting around to some electronics work, I've a few questions for those in the know...

Planning to start off with some op amps and basic RLC circuits

1) Looking at ~£22 for a soldering iron kit and ~£10 for basic component kit. Are there any pitfalls or good deals I should be aware of?

2) Op amps need an AC supply, loath to buy a ready made one however. Worth building a power supply from scratch?
( @freemo I know you recommended building some LED/RLC stuff first but I can't find the post and since I'll be needing an AC source soon anyway)

3) Any other practical considerations to bear in mind?

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