Re: Grounding Issue with TSB2590
#P48mems
Would it be worth a try if i connected the cable shielding to the ground of the capsule case? Or am I risking damaging something by doing so?
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@MusketenManfred
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#37190
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Re: Merging three Capsules on two Preamps?!
It still seems that your goals are in conflict: * XLR in with phantom power * high performance * mix controls or switching * small, lightweight, simple, portable, battery-powered But anyway. Off the
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kennjava
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#37189
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Re: Merging three Capsules on two Preamps?!
No I want to Merge a Stereo AB with a Mono Mid/vocal mic. I want to be able to switch between: Stereo AB, Stereo AB + mono Mic, Mono Mic And if I can have some degree of balancing the mono mic with
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martenberger92@...
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#37188
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Re: Merging three Capsules on two Preamps?!
Thanks for your view on this. I have a Zoom, also a Sound Devices Mixpre10ii and many decent mics, so its not really about High fidelity or practicality here. It's more about creating something
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martenberger92@...
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#37187
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Re: Grounding Issue with TSB2590
#P48mems
Yes, but the case doesn't connect to the circuit ground (Pin-1) of the XLR's. In my instructable I run it all the way up to shield the inner two wires of the Mogami cable. I am also making the three
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Jules Ryckebusch
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#37186
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Re: Grounding Issue with TSB2590
#P48mems
They look to be shielded. ive attached a photo so you can see what im talking about. They have Mesh in front and the body is soldered to ground on the 4 pads in the right picture. They should be
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@MusketenManfred
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#37185
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Re: Alctron MA-1 Schematic question
S1 would allow you to disconnect the input at pin 2 (dont know why anyone would want that...), S2 selects an input impedance (~3150 ohms or 150 ohms).? The MA1 preamp is powered by +48v phantom from
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kennjava
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#37184
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Re: Merging three Capsules on two Preamps?!
There's a way to make a passive battery box that could bias 3 electret capsules and has the "mono" capsule feeding both the L and R outputs, but it would have a bit of loss from a resistive mix
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kennjava
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#37183
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Re: Merging three Capsules on two Preamps?!
You are describing a mixer. There are small ones out there that would accomplish this. And as has been mentioned, take the two ambience capsules pan one hard right one hard left and mix the vocal in
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Jules Ryckebusch
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#37182
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Re: Merging three Capsules on two Preamps?!
Merging two omnis down to mono might not sound that great. They generally don't downmix to mono very nicely. J [email protected]> wrote:
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jack
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#37181
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Merging three Capsules on two Preamps?!
Hi all, I would like to create a little circuit box that merges the signals of two ambient mics (L/R) with a single vocal mic (M) before entering the preamps. So I can record stereo ambient and vocal
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martenberger92@...
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#37180
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Alctron MA-1 Schematic question
I've recently seen the schematic for the Alctron MA-1. However, there are a couple of features that aren't clear and I hope to get some help from the group. On the input side, after XLR1, there are
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Dan KE6PO
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#37179
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Re: Grounding Issue with TSB2590
#P48mems
Aah, OK! So the buzz is due to teh fact that the capsules are not properly shielded. The shield must extend as far as possible to cover most of the capsule. Ideally, even the front of the capsule
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Jerry Lee Marcel
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#37178
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Re: Grounding Issue with TSB2590
#P48mems
They work great except for the buzzing. Im just using a simple p48 circuit so 1 3.3uF cap and a 100k resistor on the xlr plug.
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@MusketenManfred
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#37177
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Re: Grounding Issue with TSB2590
#P48mems
The one on the left is a 3-wire capsule, when the one on the right is a 2-wire.Depending on the circuit, they may be incompatible. Apart from the buzz, does it work?
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Jerry Lee Marcel
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#37176
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Re: Grounding Issue with TSB2590
#P48mems
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
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@MusketenManfred
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#37175
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Re: Grounding Issue with TSB2590
#P48mems
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
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@MusketenManfred
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#37174
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Re: Grounding Issue with TSB2590
#P48mems
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
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Jules Ryckebusch
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#37173
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Re: TSB2590 alternative?
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
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@MusketenManfred
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#37172
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Grounding Issue with TSB2590
#P48mems
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
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@MusketenManfred
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#37171
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