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Hello everyone, small insert here - I like using low frequency tactile transducers, also known as bass shakers for the reproduction of infrasonics. Attached to a structure you sit or lay on, you

An omni electret's LF response is usually limited by * the small hole which prevents it acting as a barometer * the electronics. The hole is easily seen on the side of a B&K capsule but should be

Do you really still believe the manufacturer's specs?

At this point in time, I doubt I have anything that will reproduce 15HZ or anything below 20 for that matter, but the wish to capture these frequencies is really for some future when I may have a

I'm just a punter, but I am amazed by the amount of low bass that even a 10mm omni electret will capture. It's usually too much. To explore this, i would look into the following: * using an oscillator

Question on this one: What will you use to reproduce the infrasonic stuff you capture? ;-) Jules -- Best Regards, Jules Ryckebusch 214 399 0931 Linkedin <https://www.linkedin.com/in/jules-ryckebusch/>

Interesting article. An MKH-20 would be a good choice, but alas out of production and no more affordable than an Earthworks. I did find the Behringer ECM8000. Very affordable an rated FR goes down to

Infrasonics!? That was a rat-hole I arm-chaired down into a decade or so ago.? Record meteors, landslides, volcanoes, etc.I did hang out with the local student section of the AES who had a project

Hello everyone, I was thinking how cool it would be to record a thunderstorm with a pair of earthworks M50 measurement mics seeing as their frequency response goes way down into subsonic territory.

Hi David, You're pretty close with your circuit redraw. Notes: * USB sockets supply 5v DC * your output connections are unclear, and possibly incorrect. The output is after C1 * as Jerry mentions, R1

I have serious doubts about the use of a 5.6 ohms resistor rated at 10W. Also C1 at 0.2uF will kill most of treble.

I have serious doubts about the use of a 5.6 ohms resistor rated at 10W. Also C1 at 0.2uF will kill most of treble.

HI Kennjava: Thanks for the lead towards your document archive and the hopeful suggestions. I studied the pictures, diagram and docs. It's an interesting design. And, yes, I think we could utilize the

It's likely PUI use the same FET in all their different capsules so the resistors you used in your PUI 5024 (and those in simpleP45.pdf) are also appropriate for your PUI 5241s It's likely your

Just to throw in my 2 cents when it comes to parts and quality... Where we're at with amateur mic building is that we have access to really fantastic capsules that cost almost nothing.? And good

Hi David, I have been flowing this thread. I just want to support you and your son in your journey in Mic construction together. As a dad I am in your corner.? ?As far as tech goes I can't add to

David, you are actually up my alley for projects. I'm not a fan of published DIY projects that can't easily be built. I am all about both simple and complex projects but they need to be repeatable.

You could be right about the issues relating to capacitors. I'm absolutely no electrical engineer, but I respect their work and if an electrical engineer says they have made materials improvements

I've used tin-lead solder all my life without any issues. Silver solder has its own pros and cons. Many so-called "audiophile capacitors" are just a marketing exercise. It seems you are contaminated

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