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 ¡°real¡± TSB2590¡¯s and I think the Primos have small internal 30pF or so for EMI Protection.?
Best Regards,
Jules Ryckebusch?
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On Feb 10, 2025, at 19:13, gerttreggertert223 via groups.io <gerttreggertert223@...> wrote:
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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 ali. They arrived and sound fine but I get a weird electrical buzzing sound wich gets amplified if i touch the capsules, so i suspect it could be a grounding issue.?
I used 4.7uF Capacitors and 100k ohm resistors for the simple p48 circuit wich worked great with the em272s and should also work fine with the new capsules right?
Is there a way to fix this??
The instructable doesnt use the cable shielding connected to the microphone capsule, could this help or am i gonna destroy the mics by doing that?
Any help would be appreciated :D
