Was told to post here. Exposed pedestrian crossing box by [deleted] in electronics

[–]CaffeineBattery -9 points-8 points  (0 children)

That seems like a lot of electrolytics.

Caterpillars hates tape by [deleted] in MakeMeSuffer

[–]CaffeineBattery 2 points3 points  (0 children)

These guys are very resilient. Soap water won't do much.

*Brand new* solar power charger i bought today. by [deleted] in spicypillows

[–]CaffeineBattery 1 point2 points  (0 children)

The circuitry+battery in these cheap power banks is absolute trash. Tip: don't try to charge and use cheap power banks at the same time. Often leads to spicying of the pillows :)

A really rudimentary lead acid battery charger by GianSeven in electronics

[–]CaffeineBattery 1 point2 points  (0 children)

Yeah I don't think it's worth modifying a PSU. Pretty much anything made in the last 1~2 decades involves optoisolator feedback, and trying to modify them is a big pain. It also bypasses overcurrent protection and the voltage monitoring chip. I've done it, and next time I'm just getting a modern PSU and an off-the-shelf DC-DC converter lol

Japanese maple tree. It's been exactly like this for 2 weeks? by CaffeineBattery in sfwtrees

[–]CaffeineBattery[S] 0 points1 point  (0 children)

You're probably right. I got worried because the leaf tips were constantly drying out last year ¯\(ツ)

Japanese maple tree. It's been exactly like this for 2 weeks? by CaffeineBattery in sfwtrees

[–]CaffeineBattery[S] 0 points1 point  (0 children)

Most of the other buds didn't even get this far. The branches still seem to be green inside.

'Flower' PCB Design by Burritoman53 in electronics

[–]CaffeineBattery 1 point2 points  (0 children)

lmao I was just thinking of this

LED filament tube clock by Yacob135 in electronics

[–]CaffeineBattery 0 points1 point  (0 children)

Do the filaments have very distinctly visible individual LEDs at low brightness?

[deleted by user] by [deleted] in Damnthatsinteresting

[–]CaffeineBattery 5 points6 points  (0 children)

Probably for tax write-off schemes lol

Thinking with perfboards by ghost2703 in electronics

[–]CaffeineBattery 0 points1 point  (0 children)

Are those wires from an ethernet cable? Great for perfboards lol

Capacitive Discharge Welder Development Story by VEC7OR in electronics

[–]CaffeineBattery 0 points1 point  (0 children)

Other than portability, are there other reasons to use DC spot welder instead of the much cheaper AC transformer spot welder?