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Only condenser mics have phantom power.
But both are professional mics with XLR socket under it. The same XLR is on my digital recorder:
http://www.chitarra-online.com/images/recorders/fostex-FR-2LE-inputs.jpg
Yes, this is a combi socket. XLR with big mono phone plug (big, mono) in center. But I have and use XLR cable. I think, XLR cables are better shielded as phone jack cables.
This is my recorder: https://www.bhphotovideo.com/images/images500x500/Behringer_Behringer_XM8500_15_XLR_Cable_Foam_890290.jpg
This i not a "handheld", this is for "wearing" with a shoulder strap.
Has Konstantin Raudive used supply voltage?!?
There are circuits with "22pf" or "2000pf" capacitors (# 2 and # 3 in photo from book). These need supply voltage, "phantom power", or? 48V?
Is a circuit with the use of phantom bower better than one without?
The cheapest dynamic mic with XLR I found, as example:
https://www.ebay.com/itm/401267892418
(can you find a cheaper mic?!)
And for example, the cheapest condenser mic:
http://www.ebay.com/itm/182383064421
I am not searching for ready made Raudive-Diodes.
Simple versions on ebay for expensive ~$50 o_o.
"A good business", maybe I should build more fpr selling ;-) .
And a little bit soldering is not the problem.
Therefore, the question for the best working circuit.
But only replacing the microphone capsule? Hmmm, very simple.
Does not a coil belong in the circuit?
On YouTube there is a USB mic with diode etc. inside, and a litle wire (as Antenne) from inside out (!) on the top of the basket...
( https://www.youtube.com/watch?v=NX4ov6ggMLA at 59s)
Last edited on Jan 16th, 2018 10:14 PM by Tobias Claren