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Hi all, I have a pair of Lom basic Ucho mics, but sadly they clip if I use them on my piano. So I wanna try myself with capsules that have higher SPL and wanna get the best sound possible out of it

It's true for sounds that are radiated in the pruimary directivity lobe. When capsules are spaced less than one quarter-wave, that is verified.

Thanks! So you're saying the parallel capsule (case of two capsules) does in fact increase SNR by 3dB (in ideal mathematical conditions)? -c

sqrt 2=>3dB, not 1.4. 1.414 =sqrt 2.

Yeah other members here (Joules and Jerry Lee, not sure who I'm quoting here) have said "The concept is that the audio signal from the capsules is correlated and the def noise is not.? The math part

Thanks so much for the reply Casey - this is most helpful. I'd figured there shouldn't be any harm in doing #3 (apart from increased parts cost and space for components), but wanted to be sure there

Others will correct me if wrong, but based on what I've read here about this: With Simplest P48 (capsule + resistor + capacitor) you can indeed parallel the capsules. You use a single

Hi all, First post on here - I've done a search through the group but couldn't find a definitive answer. I've been mucking around lately with aom5024 capsules to go along with the clippy mics that I

The MA1 circuit is a blatant rip-off of the Triton Fethead version 2, which is marginally less bad than the version 1.

Isn't the cascode an inverter?

The schematic is in error. XLR1 Pin 3 goes to XLR 2 Pin 2. XLR1 Pin 2 goes to XLR 2 Pin 3. This implies that we get a polarity shift. Very bad design indeed. Is this really the original schematic or a

Hi Jerry, You're right, the second one is the simplest48 circuit.

Bob, I have bought some very old and dirty microphones at flea markets or recycling stores. I am not a professional micbuilder, but I am always happy when I can find technical information about the

Heinz, I looked again at the RCA handmic link you sent & think I found the schematic for mine. It shows an unidentified PNP along with the resistors & cap that is on my mic's board. Thank you

Thanx Heinz. Never thought of searching for a pdf. Duckduckgo didn’t find that. I did more surgery on it & in the base there is a small amplifier in it. It has a RCA branded 2N408 germanium PNP

Hi Bob When I searched Google for: "MI-559156" filetype:pdf Two results came up: Shure OEM Model Prefixes https://content-files.shure.com ?

I've attached the Primo EM272 datasheet.? Look at the diagram on the right, that's what I'm referring to.? In the place of the 5 volt battery you can use a 9 volt battery and a higher value

Greetings, I've a RCA/Shure Model # MI-559156 that I am trying to find a schematic or user manual for. This mic looks like a 444 or 444D & has a Shure Brothers sticker on the bottom but has some

Yes, connect the metal strainer to pin 1 of one of the XLR connections. It's easy to test if you can borrow a metal strainer from your kitchen. A test lead with alligator clips is useful here.

Id like to try the metal strainer approach. Where do I ground this to tho? Would I use a ground of one of the xlr connectors?