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I've built several variants of the Alex Rice preamp, as well as a couple of Jules' very nice OPA design (and I'm looking forward to the mentioned updates). I've seen the Metal Marshmallow products

I’m about to update both of my Hydrophone projects. More to follow Best Regards, Jules Ryckebusch

Can I ask about your hydrophone plan? I might suggest looking into the metal marshmallow pro diy kit for an inexpensive, well buffered phantom powered piezo preamp if that's the direction you're going

Very nice, professional-looking work. I'm collecting parts to build hydrophones, but after that I'm planning to make some Sound Sleuthers (too many projects). Ben

The bodies are from some 1/4 inch trs connector from AliExpress I had laying around. Perfect fit, and they're aluminium so they're light and shielded.

Those wind screens look great! Slightly different topic, but what are the mic bodies themselves? Repurposed connectors of some sort? Ben

This was my first real felting project! It's very beginner friendly :)

This is great! One of my projects for 2024 is to do a wind screen/DeadCat instructable and really dive into both how to make these and the acoustic properties for how they work. Great work!

Helena, that’s pretty sweet. I know nothing about felting but I’d like to give it a go.

Lovely fir balls. JHR

Hello all, I thought I'd share my diy wind screens. They cost probably less than 50c each to make, are suitable for beginners to felting and do a fantastic job. For the basic shape I wet felted them -

The following photos have been uploaded to the EM172 capsules, Jecklin disk, details ( /g/MicBuilders/album?id=186212 ) photo album of the [email protected] group. *

When I looked into "USB Soundcards" I found they are based on chips that combine an op-amp mic preamp, A to D converter, and USB interface with power drawn from USB. The converters were 16 bits at 41

Is Amazon available in your area? eBay? AliExpress? There are DIY oriented sellers there who have the 2N5457 and 2SK596 JFETs for sale in small quantities. The 2SK596C is made specifically for mics

https://www.musikding.de/2N5457 Am Mo., 12. Feb. 2024 um 17:27 Uhr schrieb Group Notification < [email protected]>:

The following files and folders have been uploaded to the Files area of the [email protected] group. * /Victor HM-200/IMG_7260.jpeg (

I’m new to the group and impressed by the knowledge and experience here in the group! I have some questions about Primo EM23: I asked Primo about phantom 48V, and got two ‘answers’: and which of

Ah yes, I noticed and corrected the capacitor polarity issue on the breadboard implementation. However, I ran into some trouble getting an actual output out with these c-media usb interface chips (the

L1, with associated capacitors is an EMI filter that both prevents interference/noise coming from the USB connection to pollute the mic circuit AND to prevent oscillation residues from the switching

I think you've got C1 in there backwards - positive voltage from U1 output? -Scott