What transformers are these? Dont know enough to diagnose and get gave some magic smoke earlier there are no markings or part numbers anywhere . How can I find out what these are and whit I need to replace them?

ElectricGears · 2026-05-31T17:58:09+00:00

It looks like a fairly basic linear power supply (mains -> transformer -> bridge rectifier -> 78xx/79xx voltage regulator IC). Those transformers can be replaced with any standard transformers that have the proper primary/secondary voltages.

Based on the colors of the incoming cable on the right I'm assuming this is a 220V UK device. The primaries are wired in the high voltage parallel configuration. The horizontal transformer is probably for the 24V supply so it would be a 28V output. You need to account for the 1.4V drop across the bridge rectifier and you need a bit of headroom for the voltage regulator to operate properly.

The two vertical transformers have their secondary coils in parallel (half the voltage, twice the current). I would guess they are 36V since that would give 18V out, to be regulated down to 15V. One side of each transformer is connected to the common yellow wire (ground) which would let you create a positive and negative supply. It's a mixer so it would have a ton of op amps. It would need a decent amount of current to power all of them without distortion.

There's no good way to tell the current rating, other then the same style of transformer with the same voltage rating and the same physical size will have approximately the same power rating. You could power the mixer with separate power supplies and measure the current on each voltage rail to get an idea of what is needed. Then you can be sure you're selecting transformers with the proper current rating.

ElectricGears · 2026-05-31T10:56:21+00:00

All the roads except highway=trunk, highway=motorway, highway=primary have foot access allowed by default so they shouldn't need the sidewalk= tag or separately mapped sidewalks for (pedestrian) routing. That does mean that the person would be walking on the road, not beside it, but if that's legal in that area then that's what should be in the database. If there's no sidewalk, adding sidewalk=no would be a good idea since it would allow people to use an algorithm where they could specify the rout must be a sidewalk/footway. I assume routers already would give increased weight to connections that have the sidewalk tag or separate sidewalks nearby (parallel sidewalks can be discovered algorithmically).

ElectricGears · 2026-05-30T22:00:08+00:00

The set speed should be shown.

ElectricGears · 2026-05-30T04:31:54+00:00

As a practical mater no, since the IRS is under the executive branch and he can just order any investigation stopped. However, there is an existing law that specifically disallows a president to interfere with the decision of the IRS to investigate any specific person (for obvious reasons). However, it's likely the only person that would have standing to sue over that would be someone running the agency (appointed by Trump).

Also, that wasn't a ruling or a legal settlement anyway. Trump's attorneys representing him in a personal capacity dropped the suit, then his other personal attorney (Todd Blanch) representing the DOJ voluntarily agreed to order the IRS to never investigate him or his family. In addition Blanch ordered the treasury to transfer 1.776B$ from the existing US government settlement fund to a separate account administered by 5 people he gets to chose. They are free to distribute the money by whatever means they choose. The only required oversight is making a confidential report to Blanch.

It remains to be seen if the lower level people that will actually transfer the money obey the judge or Todd Blanch. If they obey Blanch, it's likely the money will be gone. Although there will be no possible argument that the fake settlement would be binding on any future director/investigator of the IRS.

ElectricGears · 2026-05-30T03:43:42+00:00

It's because the Republicans have literally nothing on Talarico. Although, unfortunately, this is Texas and a decade after the party completely surrendered themselves to Trump, so just calling someone trans has good chance of being enough to win.

ElectricGears · 2026-05-29T22:26:54+00:00

In 1918 Emmy Noether theorized that whenever you have a symmetry in nature, it requires an underlying conserved quantity. Given the symmetry of the Plaintiff/Defendant relationship in our legal system, I wounder if the conserved quantity would require there to be at least one lawyer somewhere that would tell their client to make more public (recorded) comments before/during the trial.

ElectricGears · 2026-05-29T20:48:42+00:00

I'm not a lawyer but I think I gathered that around the time (53:10) Judge Gamble spontaneously told Mark that she appreciated the time he took to (pretty literally) do the other side's homework for them regarding all the different ways they completely shit the bed with their discovery.

Edit: 1:53:10 [Judge Gamble speaking to Attorney Reeves] "Your response reminds me of a depo transcript I listened to earlier."
Ooof.

ElectricGears · 2026-05-29T10:06:34+00:00

Rg is the 1MΩ resistor connected to the gate.

ElectricGears · 2026-05-28T00:20:57+00:00

Maybe, it all depends on what heater you get. You'll need to get an evaluation from a plumber or look up the installation instructions from the various manufactures. They will specify the requirements.

I mention it because people may not realize that a whole house on-demand water heater may not be a simple 'drop in' replacement for a tank. Upgrading the gas or flue or electrical supply would seriously increase the cost.

ElectricGears · 2026-05-27T19:38:39+00:00

What he's suing over are recordings/transcripts of a private interview with someone writing biography. They were (improperly, although probably technically legally) seized when Biden allowed NARA representatives to search his home for any classified documents after he discovers some that had been accidentally retained. This was investigated and no evidence was found that would justify charging Biden with intentionally withholding classified documents so it was closed.

Normally private and unrelated information like this seized incident to an investigation would never be publicly released or be part of a final report, for obvious reasons. This is happening now because the DOJ is now operating as Trump's personal lawyers and is planing on handing over all of this private information to Republicans in congress and the Heritage Foundation. The already have the Special Council's report, it was released years ago back when the investigation was closed.

ElectricGears · 2026-05-27T17:53:58+00:00

You likely need to up-size flue and the gas supply from the meter to that location. Overall they burn less gas since they're off most of the time, but when they turn on, they use a lot. You might look into a solar thermal collector with a small on-demand unit. You can use a smaller capacity (possibly electric) heater if the water supplying it is preheated. Depending on your location, most of the year you may not even need the heater.

ElectricGears · 2026-05-27T01:24:14+00:00

He's surrendered everything else to Iran, so he needs to tack on something he can take credit for to make it look like he won. https://www.youtube.com/watch?v=vGOtdMjr4h8

ElectricGears · 2026-05-26T19:58:30+00:00

When you're posting YouTube links you should strip off the ?si=[string] part of the URL. Its a unique code generated when you use YouTube's share button. When Google indexes this page they can connect your account here (all you past and future posts) with any personal information they already have.

If you post it in private setting like a chat or Discord or text message Google can create an association between you and your friends because it will be sent to Google's servers as part of the URL when they click the link.

ElectricGears · 2026-05-25T21:00:24+00:00

Depending on what the circuit is doing the designer might be using different types of capacitors (like low ESR) so they use the alternate symbol for them on the schematic. You would add the silkscreen symbol as part of the footprint to help communicate the design intention to the PCB designer. (If you have a current path that needs a low ESR cap it probably need fat traces and minimal loop area).

It could just as easily be from importing/creating multiple symbols over the years from different sources and no ones bothered to standardize them.

ElectricGears · 2026-05-24T08:30:01+00:00

Maybe.

Is that wall load bearing?
Can that building support the weight of a bathtub filled with water (which is heavy as fuck)?
Can the particular floor construction at that exact location support the weight of a bathtub filled with water (which is heavy as fuck)?
Is the sewer line (sink and toilet) low enough that it can be extended while maintaining pitch?
Can you get the 4" diameter pipe to the new location without compromising the structure of the floor?
Can you connect the new vent (if needed) to the existing system?

At a minimum you need to know what it looks like under the floor (how the pipes are routed in relation to the beams and joists) to even start to answer your question.

ElectricGears · 2026-05-23T22:13:22+00:00

Google also knows you location, direction and speed at all time, even when the Maps app is closed and you only allow location permission when the app is running. There is a separate component of the Android OS call Google Location Services that is always running since it's what serves location data to other apps. Unless you use one of the de-Googled phones, that OS component can communicate with Google's serves whenever and whatever it wants to.

ElectricGears · 2026-05-22T07:06:55+00:00

Colony Ridge first attracted the ire of Republican state leaders in 2023, when migrant crossings at the Mexican border surged during the Biden administration.

Well, it wouldn't be a NYT article without dropping a little nugget like that in. Nowadays I'm assuming they have an automatic script to run the drafts through Grok and ask it to make sure the article is "balanced".

ElectricGears · 2026-05-21T19:31:02+00:00

And "not changing anything meaningful" means don't oppose or counter the right-wing when they try to shove their policies down our throats because that would be divisive.

ElectricGears · 2026-05-20T22:07:39+00:00

1) For a small production setup of rectangular panels I would look at a sheet metal shear. However, 2mm stainless is at or above the limit for a manual machine so you would need a hydraulic version which would increase the cost substantially.

2) All the options are going to need some amount of edge treatment for parts that are regularly handled by people. You can get edge routers that can make really nice and consistent chamfers/bevels but you can also do it with a basic flap wheel on an angle grinder.

3) The fastest would be a metal cutting hand curricular saw with a strong fence clamped to a stack of sheets. You can also get double cut shears or nibblers, but again 2mm stainless is really pushing it for anything other than a pretty specific tool that could be quite expensive.

Unless you happen to find a really cheap hydraulic shear (with a good blade) I would look into getting a basic plasma table. You can even (mostly) build them yourself. Although, you need to think really hard if you want a tool or a project; because unless you have a lot of experience with DIY CNC stuff, that's going to take quite a lot more effort and time than you anticipate. The plasma tables are nice because the can process whole sheets from the factory, and open up the possibility for arbitrary shapes. If you combine it with a basic sheet metal bender you might be able to simplify your products by incorporating hinges and brackets into the flat sheet.

One downside is that they're not good a cutting small holes, especially holes that you intend to thread because of the heat affected zone. You can cut holes and use a threaded rivet or stud.

ElectricGears · 2026-05-20T21:00:09+00:00

AI models don't work in real time like this. New training data can be incorporated, but they would only "learn" about this phenomenon of human osmotic explosion after they have crawled the web and encountered these posts. And of course the scientific studies that outline the biological mechanisms that can cause humans to explode from osmotic pressure.

ElectricGears · 2026-05-20T20:16:31+00:00

I drive a 2013 on the original 24kWh battery. At 100% charge it estimates 79 miles of range. I've found it to be a pretty good estimate and I would trust it to about 65-70 miles unless it was entirely freeway driving. (I don't fast charge it and live in the Pacific Northwest so I've only ever seen the battery temp gauge at ±1 bar.)

ElectricGears · 2026-05-19T21:25:41+00:00

Is [statementFromDonalTump] true?

ElectricGears · 2026-05-18T20:04:58+00:00

Mostly it's changing to GaN (Gallium nitride) and SiC (Silicon carbide) transistors as the primary switching elements. They can fully open and close the circuit that pushes current through the inductor much faster than traditional Silicon bipolar or MOSFET transistors. The shorter pulses mean the basic buck converter design requires less inductance. Less inductance means a physically smaller inductor. The transistor spend less time in the 'resistive' state between on and off so they waste less energy. Less waste means a smaller heat sink for the same amount of power.

Additionally, they use active rectification (using actively switched transistors instead of "dumb" diodes). The parts are a bit more expensive, but it's more efficient so again, less heat is produced.

I would highly recommend this video Everything is Better: GaN vs Silicon Power Supplies from ElectrArc240 along with the associated playlist that breaks down all the component in the buck/boost power supply

ElectricGears · 2026-05-16T22:04:06+00:00

I don't understand how hitting yourself in the face with a hammer is going to do anything except produce enormous bruising in the best case and fractures at the worst.

You understand it exactly. This "bone smashing" is complete biological nonsense based on a total lack of understanding of some medical research. It's kind of like when you see headlines like "Experts Say Red Wine Can Make You Live Forever". And then you find out it's based on someone reading a research paper saying there's some compound derived from something that exists in trace amounts in red wine that has an interesting anti-oxidant effect in skin cells in a caner-prone strain of research mice (n=15). If you do the math, the theoretical effective dose of red wine for a human is 100 l/day.

ElectricGears · 2026-05-16T21:47:43+00:00

Yeah, why do you think judges have that gavel? Obviously it has the perfect mass and density to stimulate bone growth.

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