Hello, I'm working on a new build and everything was fine until I went to power up. When I plug the amp in, the indicator light is on. Turning the amp on turned off the indicator. I tried switching the wires and still have the same result. It is a 120v indicator. I have it wired to the main power switch. Is there something that I need to know about using these indicators as opposed to a 6.3v light? This is my first build with a 120v light. Thanks!
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Indicator light on when amp is off??
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Both sides do not connect to the switch. You're shorting the switch through the lamp.
The 120V lamp is wired parallel to the 120V power transformer windings.
Assuming you are building a 120V amp...you would twist together one of the lamp leads and the "120v" lead from the PT (either side of the PT primary if not a universal PT) and run them to the Power switch together, they connected to the live (L) wire via the switch. The other lamp lead will be twisted together with the other side of the winding ("Common" or "0" lead on a universal PT) and run back to wherever you are connecting to the neutral (N) wire on the power cord.
If your PT has solder lugs instead of wire leads, you can just connect the lamp leads to the correct lugs on the PT.
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Ah, okay. That makes way more sense. I'm still pretty new to this, so I do thank you for the response. It works perfectly fine now.
Originally posted by wyatt View PostBoth sides do not connect to the switch. You're shorting the switch through the lamp.
The 120V lamp is wired parallel to the 120V power transformer windings.
Assuming you are building a 120V amp...you would twist together one of the lamp leads and the "120v" lead from the PT (either side of the PT primary if not a universal PT) and run them to the Power switch together, they connected to the live (L) wire via the switch. The other lamp lead will be twisted together with the other side of the winding ("Common" or "0" lead on a universal PT) and run back to wherever you are connecting to the neutral (N) wire on the power cord.
If your PT has solder lugs instead of wire leads, you can just connect the lamp leads to the correct lugs on the PT.
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