Friends,
I purchased a PS Audio Noise filter by impulse as it was available at a discounted price.
Here is a small video of testing it on the mains.
I don't know how effective it is, but it seems to detect noise in the lines by its flickering bulb which is supposed to dissipate it as heat.
This video is not about the effect of PS but about noisy mains and non linear power supplies like SMPS based power adapters, eg. used here is a mobile charger.
I first begin by plugging the PS to the mains socket directly and it starts to flicker indicating noise in.the supply, probably DC.
Next, I remove it and connect it to the extension box which is connected to my Isolation Transformer, and there is no flicker, showing that the isolation works well.
I also have my DAC and Amp connected and both employ linear power supply.
Next I introduce a SMPS based mobile charger adapter into the circuit and still no issues.
But the moment I connect the charger to my phone, the PS starts to flicker. I then connect a high power SMPS and the flicker intensifies.
The moment both SMPS supplies are removed from the sockets, the PS becomes quiet.
I don't really know, but guess this can give an idea of the importance of mains isolation and linear power supplies.
Please do share your views on the same.
I purchased a PS Audio Noise filter by impulse as it was available at a discounted price.
Here is a small video of testing it on the mains.
I don't know how effective it is, but it seems to detect noise in the lines by its flickering bulb which is supposed to dissipate it as heat.
This video is not about the effect of PS but about noisy mains and non linear power supplies like SMPS based power adapters, eg. used here is a mobile charger.
I first begin by plugging the PS to the mains socket directly and it starts to flicker indicating noise in.the supply, probably DC.
Next, I remove it and connect it to the extension box which is connected to my Isolation Transformer, and there is no flicker, showing that the isolation works well.
I also have my DAC and Amp connected and both employ linear power supply.
Next I introduce a SMPS based mobile charger adapter into the circuit and still no issues.
But the moment I connect the charger to my phone, the PS starts to flicker. I then connect a high power SMPS and the flicker intensifies.
The moment both SMPS supplies are removed from the sockets, the PS becomes quiet.
I don't really know, but guess this can give an idea of the importance of mains isolation and linear power supplies.
Please do share your views on the same.