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Maybe this is helpful. Ive attached both circuits of the datasheets of the capsules. On the left is the JLI2590a and on the right is the dr2501 I used. They look a bit different. Should i adjust the

The capsules themselves are properly isolated from one another. They also look the same as the originals and i doubt they would go through the steps to make a fake of the tsb2590s. I think they just

I use the shield but only connect it to ground at the XLR. The capsules float at potential above ground and each one is a bit different. They need to be insulated from each other and handling. Also

Sorry I Just came across your Message now. Ive got them installed but having a bit of a problem with them as I described in another post :/ If im not able to fix the issue id gladly come back to your

So ive built an Ambi-Alice based on the Instructable by Jules and used em272 capsules. I noticed my mistake (that these are omni and not cardiod capsules) and ordered some TSB2590 knockoffs off of

OK thanks. My document was with a 147k resistor, which implied modifying the preamp (deleting one of the phantom resistors).

This is what I have. In this particular instance I'm doubling up the capsules but for a single capsule I'd have used a resistor of about 20k. I think the resistor values should maybe be slightly

There's some confusion about what a "simplestp48" is. Can you post a schemo?

Ricardo, I sent emails to your email address. Hope you received the two posts. Regards, zephyrmic

Thank you Jerry, I want to use PUI5024 capsule with Evo4 Audio interface, and the xlr output voltage is 47.6V. I thought 8.5v output voltage is best for long term use/recording and maximum SN ratio,

Yes, working ok with my standard Zoom F3. I'll check the setup tomorrow though as you have me doubting myself now....... just cautious as I can't find any references online anymore. From memory the

Are you sure that SimplestP48 works with an unmodified preamp?

So what difference will be expected in the recording between a simpleP48 and a simplestP48 mic? I've been using Martin's resistor only simplestP48 for a while and just assumed I would be missing any

The gentle LF rolloff set by the choice of C value is not going to "cut off" anything. Please read up on single pole filters. If you need a hard cutoff below a specific frequency, the easiest place to

Regarding "cut frequencies below 70Hz " see /g/MicBuilders/message/37143 Regarding "8.5v output voltage": I suppose you mean DC voltage across the capsule Why specifically 8.5? DC

I recently did some Jecklin Disk's experiments and uploaded pictures and a three-channel test recording to this folder. (

So here's my very simple M/S design from a couple decades ago: /g/MicBuilders/files/Scott%20Helmke%27s%20stuff/newbiemic-1.jpg It's not intuitive what's happening here with the side

I built an Mid/Side mic using 3 x electret capsules with intergral FETs (in my case they were Primo EM204s) using THIS SCHEMATIC ( https://www.jp137.com/lis/MS.EM204.Sch.900.jpg ) It works pretty

Thanks for this info, everyone.

Thank you so much everyone. Is there any formula/equation to calculate resistor and capacitor values to getting cut frequencies below 70Hz and 8.5v output voltage? By the way, I wan to use PUI5024