Does anyone know of a tech that can convert a AA powered 1/8 inch trs jack mic to +48v phantom power and xlr jack?
I have a vintage mic that drains the battery really fast.
I have a vintage mic that drains the battery really fast.
Does anyone know of a tech that can convert a AA powered 1/8 inch trs jack mic to +48v phantom power and xlr jack?
I have a vintage mic that drains the battery really fast.
Rechargeables?Does anyone know of a tech that can convert a AA powered 1/8 inch trs jack mic to +48v phantom power and xlr jack?
I have a vintage mic that drains the battery really fast.
Marantz Spectroscope EC5.Hmmmm.... might need both a converter box and a mod to the mic. What mic is it?
I tried that but it's a power hog. I can't get through DynaCab capture sessions on one charge and timing how much battery life it has before needing to change is a pain in the buttRechargeables?
Actually, if the supply is clean enough, that's not a half-bad idea. Will need to look up the mic and see what I can find out about it. If it has DC-blocking caps on its output, then phantom power might not work....Not the best looking way, but a wall adapter soldered to the battery tabes and plug into an extension cord. Should be simple, just redneck.
Looked at some pics on a forum, and on Reverb. The 1/8" plug is only TS, so the hacky way of powering it may be all we have, and is highly dependent on the ability to get the wires for the battery inside the mic.Actually, if the supply is clean enough, that's not a half-bad idea. Will need to look up the mic and see what I can find out about it. If it has DC-blocking caps on its output, then phantom power might not work....
That's very a interesting solution.Not the best looking way, but a wall adapter soldered to the battery tabes and plug into an extension cord. Should be simple, just redneck.
That's very a interesting solution.
Then I can wire two legs of the xlr to the plus and minus of where the mini plug cable is normally wired.
Correct?
You can pull phantom from the xlr with 2 - 6.8k resistors from each balanced line into a v+ buss for the 48v source.
Phantom voltage decreases respective to current draw though.
Only if it is using +48v sent down the xlr from the mixer to power the condenser mic.
..Which I thought was the original request for the respected Dr Bonkers.
I like to use LEDs and vary the LEDs current limiting resistor to drop +48v phantom power to the desired circuit supply voltage with respect to the current draw. Its a novel approach but it works like a champ.
But only If we are talking about phantom power from a mixer instead of a separate supply.
You are right on target if we are talking about a dedicated 9v supply ..but it will likely also need reverse biased diodes or preferably reverse biased electro caps (with a discharge path) to get the DC back off of the signal leads and pass the AC.![]()