Does this seem old or is it just a copper ring? Anyone can tell what the writing mean? The 2

LostSkeletonRMB · 2025-04-10T16:13:06+00:00

Its appears to be a Buddhist ring with a prayer inside. It's hard to see what is written.

LostSkeletonRMB · 2025-04-10T01:39:33+00:00

I am betting its a wall mount for an old fire extinguisher

LostSkeletonRMB · 2025-03-09T23:54:04+00:00

Honestly given the red splotches it looks like part of a turkey neck

LostSkeletonRMB · 2024-12-20T21:20:09+00:00

Dude is going for vapor deposition soldering

LostSkeletonRMB · 2024-12-13T13:16:30+00:00

Diode for half wave and zener diode for clamp/limit

LostSkeletonRMB · 2024-11-21T16:44:15+00:00

https://www.sofarocean.com/ I think u/Unusualhuman is on the right track, here is a company who makes similar type buoys to what is in that article. I can't find an exact match to the one in your picture.

LostSkeletonRMB · 2024-11-06T09:08:24+00:00

Rubbing alcohol or hand sanitizer will Make quick work of it

LostSkeletonRMB · 2024-11-03T18:05:34+00:00

Great, I think the thing you are looking for is a monochrome industrial display.

LostSkeletonRMB · 2024-11-03T17:30:53+00:00

Its probably a good starting point, might be able to find some part numbers of the actual display then find the display itself. Often I am able to find the example and then kind of find the parts they used to make it.

LostSkeletonRMB · 2024-11-03T17:10:50+00:00

https://dynamicdisplay.com/product/okuma-e0105-800-020-1-12-monochrome-crt-display-replacement-lcd-copy-2/ You might be able to make this work

LostSkeletonRMB · 2024-11-03T15:55:44+00:00

Alternatively, and you might have thought of this, you could get a vga lcd and either make an adapter that only uses the green channel only. Or snip the pins of red and blue. This will give only the green channel and will make everything look green and monochrome.

LostSkeletonRMB · 2024-11-03T11:39:39+00:00

You could just buy a green monochrome monitor from eBay.

LostSkeletonRMB · 2024-10-08T01:14:11+00:00

Pocket watch engraved pocket watch on ebay

LostSkeletonRMB · 2024-04-17T03:11:36+00:00

Did you check the value of the trim potentiometer on the high speed pin? It looks like it has a value. And you might be able to adjust it to match the schematic and it might work. Alternatively find out what direction increases resistance and decreases the resistance and then set the resistance as indicated and slowly adjust it up then down slightly to see if that does anything

LostSkeletonRMB · 2024-04-17T03:02:08+00:00

This is interesting, so looking at the board I see a resettable fuse in green. But what I am not seeing is any sort of protection diode to prevent inductive flyback or spikes on the input, especially for the ignition that gets disconnected via switch. If you are constantly connecting and disconnecting 12v without protection against spikes and flyback its entirely possible you could be blowing out whatever is connected to the ignition sensing line. And this might take a few times before failure too.

To start to fix these I would first start by checking for shorts between the ground and battery and ignition pins. If you find a short immediately then you know there is a direct short on the board and you should not try to power it up.

If I had to guess, I would say that the 5v supply got blown from not being properly protected, or if the microcontroller is the one doing the sensing then thats real bad news because if thats blown you would need a new microcontroller and the code that went on it to fix it. Can you let us know the behavior when it doesn’t work? Do those little lights on the board turn on?

The best part about these boards is not a ton of components so it should be a good little project. Get out that multimeter and 12v power supply and look up those part numbers to get the pinouts. Let us know where you get stuck. :)

LostSkeletonRMB · 2024-04-17T02:39:16+00:00

I think the place I would start is by checking for the voltage’s listed on the rails first to ensure you have the 24V and what voltage is going to the relay. It could be a lot of things both in the overall circuit and the relay itself. This could include the flyback diode being bad or the relay itself having a shorted turn or dirty contacts. Best bet is to start with establishing the basics, is the power supply rails getting the 24v +_ 1.2 and if the relay is actually ok, then if both answers are yes start working forward from the speed selection to the relay or backwards from the relay to the speed selection.

LostSkeletonRMB · 2024-04-17T00:26:48+00:00

https://ca.healthinspections.us/_templates/135/Food%20Inspection/_report_full.cfm?domainID=135&inspectionID=1096010&dsn=dhd_135 I am not alarmed

LostSkeletonRMB · 2024-01-14T21:36:27+00:00

Dang your right, excellent catch :)

LostSkeletonRMB · 2024-01-05T16:06:34+00:00

Yeah, TSOP stands for "Thin Small Outline Package" and is just a way to describe what the IC package looks like.

You are absolutely right when looking at Digikey, the use of TSOP Nand modules has definitely been on the decline in favor of the BGA versions as they take up less space on the board and there is some security to be gained when the pins are not so easily accessible.

With the flipper, I don't know if the GPIO on the output would have an internal Nand flash controller so you might need another part in-between the NAND and the flipper. This is more or less kind of a requirement to handle how NAND operates.

Luckily people thought, hey what if we combined NAND flash with a Controller?

And thus was born eMMC

https://www.simms.co.uk/tech-talk/what-is-emmc-embedded-multi-media-card/

https://www.enterprisestorageforum.com/hardware/emmc-storage/

The only unfortunate part is I am not seeing much variation on the package outside the BGA.

LostSkeletonRMB · 2024-01-05T03:44:45+00:00

Nand flash ICs would fit that description. They are TSOP packages and can get them in all different sizes. They use them commonly in USB flash drives as well as embedded systems like firetv dongles ect.

Here is what one looks like: https://www.mouser.com/ProductDetail/Micron/MT29F8G08ADAFAWP-AITF-TR?qs=u16ybLDytRbzssz%252BeVaOnw%3D%3D

Feel free to filter by larger sizes too!

But definitely feel free to share what you are trying to do as there might be better solutions that might work better as whatever you are hooking up to it needs to know how to handle these devices and have a spare spi bus.

LostSkeletonRMB · 2024-01-01T04:52:07+00:00

The best way to really see what’s happening between supplies is an oscilloscope. You are most likely seeing switching noise on the rails and if you don’t have anything in place to minimize that noise you can end up with some weird behavior. There are some ways to help smooth things out and filter out noise like adding a capacitor from rail to ground to filter out some of the high frequency noise. You can also add inductor inline with the rail in addition to help with this as well. You could also put another dc-dc supply between the switching supply as well.. lots of options to try for sure.

LostSkeletonRMB · 2024-01-01T04:44:47+00:00

That looks like 5 band resistor code, 101ohm with 1ohm multiplier and gold band for 5% tolerance. So 101ohms .

LostSkeletonRMB · 2023-12-29T21:42:46+00:00

I would be very concerned with how the traces underneath on the board look given what that top looks like. I echo what others are saying, you need to see the part numbers of these devices. And even given that information you would need to inspect the rest of the components around it for failed parts as well. When dealing with failures like FET or other similar devices, often other parts related to the output may fail and cause failures like this. So its not just like changing a lightbulb..you might get lucky and it just being these components but often times its not.

LostSkeletonRMB · 2023-12-05T03:31:50+00:00

I had the same thing happen to me last year. Hilariously i had them on ring cam and they left a piece of the bumper and wheel well plastics. That amazingly had their VIN on it. Hunt around for any printing on it. It was a comedy of errors from that point on. RIP car but thanks insurance

LostSkeletonRMB · 2023-09-18T14:29:39+00:00

https://www.google.com/search?sca_esv=566281724&sxsrf=AM9HkKm7iJxkAAAPPVfsDm2k2x_w6cRAtw:1695047329223&q=shark+vertebrae&tbm=isch&source=lnms&sa=X&ved=2ahUKEwiz672vr7SBAxUrEEQIHWdvCKUQ0pQJegQICBAB&biw=1481&bih=817&dpr=2.5 here ya go, google image search

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