Electrical phase...

EugeniyDomashets

Well-Known Member
Mar 27, 2018
9
1
103
Hi everybody.

Yesterday i recieved this item:

View attachment 39938

That is the operating instructions:

View attachment 39939

My objective was to detect the internal polarity of each electronic/electric device.
This item really works !!! I have confirmed that all my audio system is right connected.
As my mono amplifiers has hum sound since day one i began to test all the rest of the electric devices of my home.
I discovered refrigerator and coffee machine were connected out of phase.
Once everything tested and rightly connected amplifiers hum sound has gone.
Now i haven’t any ground loop.

Highly recommended !!!!
How to check light bulb?)))
 

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