Voltage step down for lavalier mic phantom power?
« on: February 11, 2019, 08:19:12 PM »
Does anyone know what is involved in doing a circuit to use 48v phantom power with a lavalier mic that takes (I was told) 6-7 volts? Here's an example of the kind of thing that is used for some mics.
https://www.ebay.com/p/Cardioid-Lavalier-Microphone-48v-Phantom-Power-Adapter-for-Shure-Mixing-Console/1856600904

I think it's something similar for the Countryman lavalier mics:
https://www.bhphotovideo.com/c/product/295908-REG/Countryman_B3P4FF05B_B3_Omnidirectional_Lavalier_Microphone.html

Is this thing -- which fits in a small shotgun shell sized case -- DIY-able?

Any insight appreciated!


Khron

Re: Voltage step down for lavalier mic phantom power?
« Reply #1 on: February 12, 2019, 05:12:28 AM »
You "were told"?

Either way, those lav mics are just small electret capsules. See the other thread for details.
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans


 

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