Questions tagged [phantom]

Symbolically applies to audio or RF lines that have a clean DC voltage applied to them through a resistor, as power for the source of the signal. It is usually in milliamps and 1.5 to 48 volts. Filters at both ends isolate the power from the signal. It avoids the need for a separate power feed, or batteries.

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Risk of long-term shorting XLR cable

I'm adding a 'mute switch' into my XLR cable. To mute an XLR cable/Phantom powered microphone you temporarily connect pin 2 and 3 in the cable to short the connection. I have seen plenty of youtube ...
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32 views

Making a phantom powered power switch (not mute switch) with LED indicator

I want to create an XLR inline power switch (with indicator) so that I can turn my phantom powered microphone on and off as I please! I have found a few guides online that explain how to create a ...
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201 views

Convert 3V unbalanced microphone to 48V phantom balanced

I have the following circuit in an existing product, which has a microphone, power switch, LED indicator, and is powered by 2 AA batteries: simulate this circuit – Schematic created using ...
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90 views

Simple parts to stop “phantom power” from entering circuit

I have a circuit here which can sometimes program a microcontroller. I think a big problem here is that "phantom power" is introduced in the circuit because when I'm ready to program it, I plug the ...
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67 views

Can I use 48 V DC power supply to make my own phantom power?

I want to know if I can convert a 48V DC power adapter that I have at home to use it as phantom power for my condenser microphone. I only want to add some sockets that can support a microphone. ...
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57 views

What is the maximum length of xlr cable from a Canon XA10 to a microphone without losing quality of sound [closed]

What is the maximum length of XLR cable from a Canon XA10 to a microphone (say a Rode NTG-2, using phantom power) without losing quality of sound.
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308 views

How to calculate power used by my microphone?

I want to plug a microphone into my camcorder. The battery from the camcorder will provide the power to both the camcorder and microphone. The specifications for the battery are as follow: capacity = ...
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224 views

Locality of ghost/phantom voltages?

I know about the ghost voltage concept. As far I as understood for example in an SMPS there is "Y" EMI filter and that little capacitance creates a RC voltage divider and we see the ghost voltage high ...