Reddit:Electronics
HP 3070 Series 2 MUX card
 | This giant chungus is one of the MUX cards for a 3070 test system, it’s festooned with dozens of reed relays and other goodies to measure resistance in this case. The whole system has been giving us issues for a while now. Today I found that like 3/4 of the solder joints securing the pogo pin sockets to the card (second pic) have cracks in them from years of being pushed down and let up a few dozen times a day. Just another lesson to not get tunnel vision to only electrical failures specifically and to consider mechanical strain as well. [link] [comments] |
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What is the most disgusting electronic thing you have seen or repaired?
I used to do CCTV repairs for cameras that were installed in prison cells. They were those super fancy ones that are mounted on the top of the cell in the corner with nothing to grab onto, so the prisoners can't take them off the wall. Occasionally I'd get one that came into the repair centre that I managed, and they ALL smelled of pee and turds. I actually saw some dried brown smelly stuff in one of the cracks in the camera....Needless to say I wore gloves and sanitized all the tools afterward, as well as billing the customer extra for the cleaning I had to do + "hazard money".
Another notable mention was an old lady's desktop that kept shutting down on its own. I opened up the case and there was a severe ant infestation along with spider webs all over it. Turns out her grandson somehow managed to spill some food inside the case (don't ask me how), which led to the infestation.
What's the worst, most filthy electronic device you've ever seen or repaired?
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Vintage RS Components Catalogue
 | Found this vintage RS Components Catalogue at work. Less than 90 pages for whole catalogue. [link] [comments] |
My AC motor control project
 | submitted by /u/gubbkuuk [link] [comments] |
my MPPT solar charge controller
 | My current design on a MPPT solar charge controller i am designing for fun. A standard buck MPPT has issues with current feedback with no solar power, so i thought why not add a boost stage, now i can charge batteries at super low light levels, and no current from the battery through the panel at night. decided on a 555 timer charge pump to get around the duty cycle limit of high side nmos bootstrap gate drivers. This will eventually have a 12 or 15v supply for gate drivers and 555, and be able to accept battery and solar panel voltages up to around 60v [link] [comments] |
3rd world electronics: built to the shittiest of standards, but is somehow reliable as hell
 | submitted by /u/tristanceleazer [link] [comments] |
I heard this subreddit likes obsolete LED displays
 | Im very new to electronics. Im trying to learn as I go at my job, as it requires working with alot of obsolete parts. I know nothing about these type displays. But I hope you all enjoy them. Any information would be welcome! [link] [comments] |
DC-DC converter coil whine
 | Need some advice on how to stop this thing from whining so much. It is a very high pitch whine coming from the buck converter module while under load. At Idle, the input voltage is 13.8v and output is 3.45v with no whine. When the Apple Tv is powered on the output is 3.39v. OEM PSU is 3.4v. Is there anything I can do or will I need a different module? [link] [comments] |
Tiny Thermocouple Wires
 | I bought these thermocouple wires off the top google search results. The gauge was unlisted, brown is 20 gauge for reference. Has anyone successfully used such thin thermocouples? These are for extreme cold temperatures [link] [comments] |
Weekly discussion, complaint, and rant thread
Open to anything, including discussions, complaints, and rants.
Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.
Reddit-wide rules do apply.
To see the newest posts, sort the comments by "new" (instead of "best" or "top").
[link] [comments]
Rate my soldering setup
 | Just got a job in a lab for PCB design and this is the soldering station. [link] [comments] |
A radio that I am repairing at work
 | submitted by /u/Faloin [link] [comments] |
Created a custom flipdisc display, and made a guide so you can build your own!
 | submitted by /u/beatboxrevival [link] [comments] |
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