#1

Any of you nerds know how to get 5v out the 45v phantom in most mixers, without something like this?

#2

With the ubiquitous nature of USB these days, probably easier to build something like this: http://www.stufinnis.co.uk/micpreamp.html rather than convert from 45v? But I’m sure others will be able to give a more informed view.

#3

how much current do you need at 5V? If it’s less than a milliamp or so I guess you could do something truly terrible like:

  • connect the cathode (end with a stripe) of a 5V zener diode rated for at least 5mA in series with either leg of a 22K resistor rated for at least 250mW
  • 45V (XLR pin 2 or 3) goes on the remaining leg of the resistor
  • 0V (XLR pin 1) goes on the remaining leg of the zener diode
  • 5V comes out where you joined the resistor to the zener diode
  • check your 5V with a multimeter

For the record I agree with @Simeon you’ll be better off procuring a 5V supply for 5 bucks rather than resorting to this low hack.

Also my suggestion could damage your mixer I guess so don’t say I didn’t warn you…

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