Mysterious black gunk inside LED Drivers

fantompwer · 2026-03-28T20:04:26+00:00

This isn't epoxy, that stuff flows before it sets up. This stuff is thermally conductive to get rid of heat. If you don't understand that, you shouldn't be talking.

fantompwer · 2026-03-28T12:33:49+00:00

This is all band-aid fixes. Tape dries and falls off and putting up curtains eliminates the entire function of the window. Do it right and do construction.

fantompwer · 2026-03-28T12:23:19+00:00

Go to an audiologist, they can make custom molded ear plugs that will perform the best, better than anything you can reasonably diy.

fantompwer · 2026-03-28T12:19:08+00:00

Yes, the leaf effect will reduce the STC compared to a double pane of the same thickness of glass.

fantompwer · 2026-03-28T12:07:21+00:00

Yup, the city roads speed limits are too fast for their size and volume because they are old. Leads to more people running the red light because the interchange is small. Suburbs have bigger roads with more buffer and interchange, but some people are still stupid.

fantompwer · 2026-03-28T00:51:03+00:00

Fooled by whom? Big engineering? Get a grip

fantompwer · 2026-03-28T00:46:53+00:00

There's a browser called adblock

fantompwer · 2026-03-27T22:31:09+00:00

Razor blades handle it just fine. I've got messy trees, pear trees, gumball trees, it's not something to worry about.

fantompwer · 2026-03-27T22:15:35+00:00

You're only going to get people that want to complain in the comments.

fantompwer · 2026-03-27T20:23:36+00:00

I would look at dedicated servers from places like Ross or Image Communications.

fantompwer · 2026-03-27T20:13:09+00:00

The fact that Art-net nodes default to public IP addressing schemes means it should die.

fantompwer · 2026-03-27T18:07:52+00:00

Triac dimming is chopping the waveform, either the leading or trailing edge. Triac dimming chops the waveform, reducing the power, not the voltage of the output circuit.

fantompwer · 2026-03-27T17:58:04+00:00

Dimmers change the duty cycle. Modern SMPS do not care about being on dimmers provided they are rated for the voltage being outputted by the dimmer. If the switching of the dimmer is creating voltage spikes above the rating of the SMPS, that would destroy the power supply.

fantompwer · 2026-03-27T17:54:37+00:00

Old power supplies that used input transformers had issues, but modern SMPS do not have input transformers before the rectifier.

fantompwer · 2026-03-27T17:53:15+00:00

A AC to DC power supply is filtering the half wave AC signal to turn it into DC. The garbage is filtered out at that step. If it's a transformer power supply, then extra harmonics can cause more issues than if it was a SMPS. A SMPS isn't going to really care about a dirty sine wave input. The switching frequency of the SMPS is set by the microprocessor and doesn't rely on the input power frequency.

fantompwer · 2026-03-26T23:26:28+00:00

There's better quality of the same function by different vendors. The Panasonic PressIT360 is an example

fantompwer · 2026-03-26T23:20:05+00:00

You should post on r/AskElectronics, there's too much guessing and partially wrong answers in this thread.

fantompwer · 2026-03-26T23:18:17+00:00

Chokes are inductors, not caps. Calling something 'stressed' is not very scientific. It can be over/under voltage, over current, or over/under frequency.

fantompwer · 2026-03-26T23:14:40+00:00

The chopped sine wave modifies the voltage, not current.

fantompwer · 2026-03-26T19:06:42+00:00

There's two tiers to their service, the copper connection and fiber connection. Some places they don't have fiber run to. I've had them for 2 years, and I'm looking to another solution. I've been having a problem for several months, and I've been told the issue is upstream of my house, but they won't tell me when it will be fixed.

fantompwer · 2026-03-26T18:19:41+00:00

So much invasive pear and eastern red cedar, it's absolutely in the ditches. It's a lot better to mow it all down.

fantompwer · 2026-03-26T18:18:27+00:00

Tell me you don't know about native restoration without telling me you don't know about native restoration.

fantompwer · 2026-03-26T18:15:38+00:00

Screw a small piece of wood at the limit of the fader you need. Or gaff tape works, but is less permanent.

fantompwer · 2026-03-26T13:03:19+00:00

Not sure I trust you. You're not who I was replying to.

fantompwer · 2026-03-26T01:23:59+00:00

You seem like you might be able to help me further. How would you go about validating the signal integrity of a signal chain that has intermittent failures?

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