Love the “serious” request to tone down humor. Maybe that requester was being sarcastic? Ask if they are a fan of Monty Python and the like and then you’ll know for sure.
I think that sarcasm should be oppressed. And I sarcastically mean that.
Benny Hill for President!
Just because nobody complains doesn’t mean all parachutes are perfect.
I’m not against half naked girls - not as often as I’d like to be.
That’s what show business is — sincere insincerity.
Benny Hill quotes
No sarcasm. Some people just take themselves very seriously.
Vewwy Seweiouswey.
Dimmers make them blink like crazy. Regular switches, less so.
This is an interesting topic and one I was thinking of posting about. I have (3) Noise Harvesters in use. I recently plugged one of them into my P10 and noticed that it was blinking a similar amount compared to the other two Noise Harvesters plugged into my wall on the same circuit. This a bit troubling to me considering my expectation that the P10 addresses noise present on the untreated AC mains. So, how is it that when plugged into an unused P10 outlet it blinks similarly to those plugged directly into the wall outlet?
Has anyone else experienced the same?
It was my understanding they wouldn’t blink when plugged in to the back of a regenerator since the outlet was isolated from the noise. What is your regenerator THD output?
My THD is good. 0.1-0.2%
Bizarre, I didn’t think it should blink…
I’m with you… definitely a head scratcher.
It would be useful to quantify the actual noise through data and measurements; the following thread also asks similar questions:
Here is a test report of Collins Audio recording studio on the Noise harvester:
Collins Audio experience with PS Audio Noise Harvester
Based on the findings in that report, it seems likely, that when you plug it into a clean power output of the regenerator it cleans up the noise that it generates itself.
To me, power regenerators seem the most effective and reliable way of hooking the audio equipment to clean power.
There seem to be nano fiber technologies that effectively absorb high frequent noise from power lines.
But RLC packages are a gamble. Their effectiveness is so much depending on all other RLC networks, like those in the output of the regenerator or the existing input filters that averse piece of your equipment must have due to EMI/EMC mandatory regulations. As with all RLC networks, the wrong combinations can actually start resonate the wrong frequencies, which can certainly add more noise.
The noise harvesters might work in one situation, in the other they might be counterproductive.
Try and listen in your system. Try plugging them in different outlets as the effect will change, perhaps to the better.
You will have to trust your ears.
The blinking of the LED: A fact is that PS Audio never claimed that it is a noise gauge / indicator.
Bring out your dead…too soon?
Well, I fell on the floor. But not even with my trusty 10 ft pole!!!
Now I’m going to have that scene going thru my head today.
I believe Paul suggested plugging a noise harvester into the back of my Power Plant.
Thank you for the link above, showing the objective FFT 100kHz broad-spectrum noise data, showing that the Noise Harvesters don’t subtract much noise, and even adding a little of its own noise at 88kHz.
That said, however, I think they’re pretty cool as AC line noise detectors - I own five of them.
I’ve found that BITs are the ONLY way to go, and are especially effective when plugged into the AC duplex outlet of my P20, with a five-conductor “balanced” AC cable to power my front end components. Not surprisingly, the Noise Harvester does NOT blink at all, when plugged into my BITs, which is absolutely wonderful and reassuring that the BITs doing their job admirably.
Hi, I’m just thinking about this - We are talking an isolation transformer here (very high quality in terms of the transformer spec)?
Do you know what the “Balanced” part comes from i.e. both live and “neutral” lines are isolated from the wall mains so are effectively floating?
I guess I’m trying to visualise the circuit / wiring diagrams for these things in my head. Earth presumably still has to be connected direct to wall earth though?
“balanced” kinda suggests a centre tap on the secondary side that is connected to, something?
Apologies for all the question marks, tell me to go ask elsewhere and no offense will be taken
This thread is for Noise Harvesters, so BITs are off-topic, but here’s a link where you can read about them:
https://www.plixirpower.com/pages/plixir-power-concept
thank you
If you can visualize a typical wiring for US homes, you have what’s known as hot and neutral. Neutral is tied to Earth ground at one point in the electrical box. The National Electric Code (NFPA 70) requires that neutral and ground be bonded at the main service entrance for residential electrical service. This means that when we start with incoming AC from the utility pole it is “balanced” as in this diagram. But it is also grounded to earth, thus, effectively, it is not balanced.
What’s missing in the diagram is the connection to Earth on the neutral, and this makes it confusing.
When you add an isolation transformer, its output is once again balanced without reference to Earth ground.