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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?

I cant imagine this being the case. As I said in the other thread, apart from the electrical buzz they sound fine. But I think the capsules are different because there wouldve been at least some other

This is different than the schemo in your previous post. The former has a capacitor to isolate DC, the latter has none. Both may work but require different values for the resistors.

Another picture for assembled components.

This is the snapshot from the original video.

We read about your buzz/hum issue, and threw out some solutions for that. Beside that issue, did your 2590 lookalikes work at all? They usually do, even though their specs aren't quite the same. Be

Hey Scott, Pls allow me some beginners questions. Is what you are describing similar to the simple P48 circuit just with a smaller resistor? And would 4,7 uF be a "nice big" capacitor? And the 9V is

There is conduction between drain and source in a properly biased FET. From pin2, current flows through Q3, then Q4, then R6 and R7, back to pin1. >

So this setup could be built actually fairly simply - no need to have phantom power or anything like that. Too complicated. Going back to the kind of electret capsules that kick-started the mic DIY

S1 & S2 is understandable, but the power issue still escapes me. The only point at which V+ power can reach the circuit is from XLR2. But I don't see how power gets distributed. If V+ is present on

Hey so it looks like im out of luck with my tsb fakes. Would you still be Interested in trading? I saw you wanted to build a new mic with the tsbs. If ur Interested, as I dont have any use for the

Sorry, forgot to include the schematic.

If you are using SimpleP48, you should download the latest version of SimpleP48.pdf from my Files.? Among other issues ... * 100k is almost certainly too large for TSB 2590. * I pontificate at

No problem you can power that circuit from a 9v battery sans phantom power Best Regards, Jules Ryckebusch

Hi Jules, thanks for clarifying. I checked out your M/S mic today, where you created a figure of 8 by wiring to cardioid capsules in series. And that gave me an idea? Couldn't I then if I want to

Forgive me if i'm way off base,? but couldn't you use your?Sound Devices Mixpre10ii multi inputs to record and "mix" your channels post production?

Hello everyone, I'm looking for a bit of advice on combining two different kind of capsules (electret and MEMS) into one microphone body. What things should I consider when in comes to phasing,

Hi Jules, I only suggested the OPA-Alice as inspiration - it showcases a suitable opamp for battery-powered use, some practical considerations around single-ended powering, and then I'd expect the OP