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Hi Jules:

Not wanting to be overly critical of the youtube project I was referring to…. I noticed that many of that person's projects are not fully realized. Or well-realized. He has very curious ideas and makes prototypes but I always find issues with the materials and processes he employs. For example. In this mic project, he uses brass tube and rod (nice); but he uses regular lead solder for all the connections and joints - not silver solder which won’t break and bend. His methodology of making the enclosure from many perspectives is shoddy. I'm making improvements as I go.

What I came to realize is that his amp board didn’t say to use audiophile grade capacitors - it left me wondering how good the whole circuit design actually was. When I read through the project’s chat I found that very many people could not get a decent output signal despite following his directions. So, I decided to look into a previously assembled board and yours listed on JLI was the most logical: 1/ made for that mic body, 2/ suggested by JLI, 3/already assembled with the electronic bits soldered into place and everything, 4/ I presume it is tested.

The only questions was how to give it a USB2 output and a power supply. So, I asked you.?

It seemed logical that if the boards output is a JLX, then locating a JLX -> USB adapter (amazon product) would be the least circuitous route to getting a viable mic with a very good sound quality. Realizing that the Amazon product has an internal chipset it does introduce some questions that I suppose it would take some signal analysis to figure out. Another skillset I lack.

If that is not a possibility, then any reliable solution will be great. If its me building a basic battery box design and using the USB2 power in place of the 9 volt battery, then I am totally good doing that. When we design project #2, my son and I could try a more interesting opamp solution.

Thanks again for your time helping me clarify a basic project. I understand that you probably enjoy discussing more advanced questions.

have a great day.

D

On Feb 21, 2024, at 9:18 AM, Jules Ryckebusch <ryckebusch@...> wrote:

I noticed that the XLR had a significant voltage range 5-48 volts. Wikipedia says that:?