googlesucks

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@downtownbillyandthenewjivefive 2 ай бұрын

I am no expert, but I would presume that 'ground noise' would more likely come from a PWM power source on some support chip. As a physicist. I wouldn't even suggest looking in that direction. I would go directly towards a support chip, or component. It is just a diode, as you say. I told you about a PIRANHA LED that went rogue, and starts flashing on its' own. I powered it up yesterday, and voila! No flashing. Shut it down, and turned it back on: same flashing is back. I probably will disassemble the wizard staff that it is installed in, and make a mess of it to replace that LED. If I do that, I'm going to send it to you so you can test it. I still maintain that it's a heat joint issue. That once the LED reaches a certain temp, that joint oscillates between a connection, and an open circuit, because of some manufacturing defect. My dad used to keep a can of Freeze-It, or some such, on his workbench because older TVs had those kind of issues all the time. I actually had a chance to use that when I was building my TRS-80 Model I expansion chassis, which came with a bare board, and a parts list. Once I had put everything together, it didn't work. There was one 74LS series chip that was generating incredible amounts of heat, so it was an easy diagnosis, but when it worked after spraying some of that cold can air on it to cool down, everything started to work, and you could see the physics of it before your eyes.

@ElectroRestore 4 ай бұрын

True! When most of us radio restorer say in our videos that our LEDs are responsible for ground noise in tube radios, we really mean the switch mode power supplies that are in the base, of our screw in LED bulbs, in our bench lights. It is easier just to tell our customers it is our LEDs. Rather than explaining what a power supply is and how a solid state, switch mode, high frequency oscillating, AC-DC power supply works.

@googlesucks1376 4 ай бұрын

Found that out years ago when testing some bung hole pumps for EMI - kzbin.info/www/bejne/rnOcc4eJnLmFj5I

@downtownbillyandthenewjivefive 2 ай бұрын

Good choice. You have to let that kind of ignorance slide. They don't really care. They just want it fixed, so they can bullshit with their co-workers, drink coffee, and make copies...

@StickmanAnimatesOffical Жыл бұрын

I might have the wrong guy are you the guy who I met on build a boat it's me kamranjk201900

@elementor85 2 жыл бұрын

I do not know exactly what's the point of creating this video.

@googlesucks1376 2 жыл бұрын

To visually represent what Kenny was talking about. For decades, we've use Lissajous patterns for seeing the phase angle between left and right channels. It was important in the days of vinyl mastering since significant out-of-phase audio in the lower part of the spectrum would result in the cutting head lifting out of the groove - causing skips. This happened to the first Led Zep album. See Larry Bodin's book "Basic Disk Mastering" where he shows the Lissajous patterns, what they mean, and what can happen. Another issue is that out-of-phase information can result in phase cancellation. This can cause issues with summed audio signals sent to things like subwoofers and center channel audio on X:X multichannel systems. The other issues is that it's really annoying to listen to - it makes your sense of hearing do some bizarre things, since human localization is as much time based as it is amplitude. See this these links to Cornell and MIT: Prof Land; Cornell 25 kzbin.info/www/bejne/rqaaqHxnoJmXqJo 26 kzbin.info/www/bejne/e16np4mfmaqpjMk MIT: 22. Auditory cortex 1 Physiology and sound localization kzbin.info/www/bejne/d2GuoYeIlLqdodU