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r/AskElectronics

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Could someone kindly explain how this works and why they chose the values for the resistors like this?

u/Cheetah_Hunter97

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Could someone kindly explain how this works and why they chose the values for the resistors like this?

u/adobe

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What are the metal prongs on this led light bulb?

u/robbymcgee

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What are the metal prongs on this led light bulb?

Have I fkd this circuit board?

u/-Caesar

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Have I fkd this circuit board?

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Rules

Comments must be civil and helpful.

Please engage with others in a civil manner. If someone is rude or hostile, please let the mods know -- they will take appropriate action, which may include a ban on the offending account.

Questions must be on-topic, explanatory, non-commercial and original (not reposts).

In scope topics are:

Component-level electronic (not electrical) engineering:
Circuit theory, design and repair.
Sourcing electronic components, equipment & tools.
Coding help with chip-level signals (driving, interpreting) but NOT GENERAL PROGRAMMING.

NOT permitted:

Commerce (selling, hiring...).
Questions & opinion about off-the-shelf electronic products.
Reposting.

Still not sure? Ask the mods

The post title and content should summarize the question clearly & concisely.

Your submission title should summarize the question clearly & concisely. This helps with future searches. Likewise, for example, posts just showing a photo and asking for a diagnosis will be deleted; please repost with more information.

Observe the rules for working on vehicles.

Extra rules apply to questions on vehicle electronics - please read before posting.

Read the sidebar / wiki before posting. Try searching.

If your question is already fully covered by the FAQ/Wiki it may be deleted to avoid repetition.

Also try a Subreddit search; many common questions have already been answered multiple times.

Humor in moderation.

"Jokey" comments that don't materially contribute to the discussion are eligible for instant deletion. (This isn't r/ShittyAskElectronics.)

Be safe!

Posts or comments that imply or encourage an unsafe situation or action will be removed.

DIY repair questions about microwave ovens will be deleted.

Topics Covered

Before asking a question, read this page on what is on- and off-topic, read the wiki/FAQ (your question may already be covered), and see if another sub is more appropriate.

Wiki Links

Here's some links to popular pages in our Wiki:

Top Alternative Subreddits

These Subreddits should be used for related topics which don't involve any electronic circuit design or repair:

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