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current flow indication through induction

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shahbaz.ele

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dear all I want to have an indication of circuit connected via LED or some other method.
actually I have ten different Audio amlifier machines running ten different circuits of speakers.
I want to make a monitoring panel for it.
Machines output is 100V at 42 ohm.
TOA machine
I am thinking about induction because i does not want to add extra load on machine.
 

kamranravian

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why you do't use digital voltmeter for this purpose.
It will not effect your load i think.
 

shahbaz.ele

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Thanks dear kamranravian
this is a good option to use digital voltmeters.
is there any other suggestion please.
 

godfreyl

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LEDs use very little current. This circuit is simple, cheap, and puts almost no load on the amplifier.



edit: Analog meters would be better than digital ones. With digital meters, the numbers will be constantly changing and difficult to read.
 

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