The Black Hole......

These days the noise floor in a big-box store selling cheap LED fixtures is likely similar...lolol.

Cheers!
Howie
Due to some serious mismanagement I was fortunate to get 3 High Bay LED fixtures meant for a Target store (they double ordered) for my garage shop. They are quite bright but all I could find in EMI was a small peak at 75 KHz. Other ambient noise sources were worse. I think the FCC rules have forced the vendors to make pretty good supplies. I needed a 12V adjustable supply to test bigger car amps and found I could kludge an LED supply to work quite well for that, and pretty cheap.
 
Due to some serious mismanagement I was fortunate to get 3 High Bay LED fixtures meant for a Target store (they double ordered) for my garage shop. They are quite bright but all I could find in EMI was a small peak at 75 KHz. Other ambient noise sources were worse. I think the FCC rules have forced the vendors to make pretty good supplies. I needed a 12V adjustable supply to test bigger car amps and found I could kludge an LED supply to work quite well for that, and pretty cheap.
"Serious mismanagement"? I do not consider doubling an order of lighting parts an issue. I always make sure I have spares.
Granted, lots of spares means lots of storage space. But figuring out how to store the stuff is not a problem, it's a challenge!!!

jn
 
For producing the sound of my new Oled TV via toslink through my active B&O boxes, I bought a Topping E30 Dac (AK4493) which includes a remote control for volume setting.
Loaded with features like 6 different fiters, multi inputs going up to PCM768 and DSD512 while being sized smaller than an Apple TV, this is an incredible value for money for just € 145,-.

Hans
 
To the long term participants of this thread :wave:


George
 

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To the long term participants of this thread :wave:


George
Wow! I've seen the images, but hearing some slight background on how they were acquired is really impressive...as is the enthusiasm of the scientists doing the work! I wish we all had vocations so energizing...although sometimes when a system or circuit wakes up and say Hi! I feel that kind of buzz myself...

Cheers!
Howie