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Should all grounds go to the same negative bus on a breadboard? Answered


Whenever I see circuit diagrams they just show a ground off some components. When I'm designing on a breadboard should all of these go to the same negative bus on my breadboard in order to function properly? I've got one positive and one negative on each side (standard 6" Radio Shack model). Also, I would assume that a series circuit would be for those instances when you have no negative bus at all and need to ground back into the power supply as well? Thanks!

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NachoMahmaBest Answer (author)2010-10-20

.  For low-voltage DC circuits, it's pretty safe to assume that ground = 0V = negative rail = Earth. It will usually be noted somewhere if different.

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steveastrouk (author)2010-10-20

Some amplifier circuits DO need a +ve, a -ve and ground connection.
That MIGHT be your problem.
Steve

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Re-design (author)2010-10-20

As long as all of the grounds connect end up connected up to each other then it's alright. In some instances like in an amp you get less noise if all of the grounds go to the same point in the circuit.

If no negative pole is shown it can be assumed that the ground is the negative connection.

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user

"If no negative pole is shown it can be assumed that the ground is the negative connection."

Which could indicate why my amplifier is probably not working (among other things). Thanks!

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