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Author Topic: DIY mics  (Read 9481 times)

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Offline Nick's Picks

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DIY mics
« on: January 12, 2008, 10:14:20 AM »
I'd like to build myself a pair of little cheap stealth mics.

looking for capsule suggestions / sources.
I know the pani's are the "go to" cap (core sound, SP..etc etc).

wondering if there is something better out there ?
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Offline Nick's Picks

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Re: DIY mics
« Reply #1 on: January 12, 2008, 10:15:20 AM »
fwiw, I am NOT looking to get into this as a means of income. 
just a project for myself.

so the rest of you folks who make / sell home-made mics ...dont sweat me.
you have my word.
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Offline Church-Audio

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Re: DIY mics
« Reply #2 on: January 12, 2008, 11:29:38 AM »
Quote from: Nick's Picks on January 12, 2008, 10:15:20 AM
fwiw, I am NOT looking to get into this as a means of income. 
just a project for myself.

so the rest of you folks who make / sell home-made mics ...dont sweat me.
you have my word.


I have some nice Primo capsules I can send you let me know if you want some.

Chris
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Offline Nick's Picks

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Re: DIY mics
« Reply #3 on: January 12, 2008, 11:35:43 AM »
ding ding ding !!!!!
PM sent, Mr. Chris.
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Offline Nick's Picks

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Re: DIY mics
« Reply #4 on: January 12, 2008, 11:53:01 AM »
ha!
no fears. 

I'm as reliable as a Britney rehab stint.
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Offline digifish_music

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Re: DIY mics
« Reply #5 on: January 13, 2008, 01:09:23 AM »
Quote from: Nick's Picks on January 12, 2008, 10:14:20 AM
I'd like to build myself a pair of little cheap stealth mics.

looking for capsule suggestions / sources.
I know the pani's are the "go to" cap (core sound, SP..etc etc).

wondering if there is something better out there ?

Did you see this post?

http://taperssection.com/index.php/topic,94446.0/all.html

digifish
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Offline illconditioned

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Re: DIY mics
« Reply #6 on: January 13, 2008, 01:45:02 AM »
Quote from: Nick's Picks on January 12, 2008, 10:14:20 AM
I'd like to build myself a pair of little cheap stealth mics.

looking for capsule suggestions / sources.
I know the pani's are the "go to" cap (core sound, SP..etc etc).

wondering if there is something better out there ?

Unfortunately I don't have time to help you.  But welcome!

  Richard
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Offline udovdh

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Re: DIY mics
« Reply #7 on: January 13, 2008, 03:59:31 AM »
Any tips in the same DIY direction for capsules that can be powered from a 9V battery and are cardioid? FET required and present so no preamp is necessary?
I understand that I can't buy DIY Sennheiser MKH80x0 performance but what would be nice to try?
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Offline F.O.Bean

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Re: DIY mics
« Reply #8 on: January 13, 2008, 04:21:44 AM »
Quote from: Nick's Picks on January 12, 2008, 11:53:01 AM
ha!
no fears. 

I'm as reliable as a Britney rehab stint.

ZING!!! +T
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https://archive.org/details/@diskobean
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Offline digifish_music

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Re: DIY mics
« Reply #9 on: January 13, 2008, 04:28:01 AM »
Quote from: Church-Audio on January 12, 2008, 11:29:38 AM
Quote from: Nick's Picks on January 12, 2008, 10:15:20 AM
fwiw, I am NOT looking to get into this as a means of income. 
just a project for myself.

so the rest of you folks who make / sell home-made mics ...dont sweat me.
you have my word.


I have some nice Primo capsules I can send you let me know if you want some.

Chris


What are Primo Capsules? Link?

digifish
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Offline udovdh

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Re: DIY mics
« Reply #10 on: January 13, 2008, 06:40:50 AM »
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Offline Nixoo

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Re: DIY mics
« Reply #11 on: January 13, 2008, 07:09:09 AM »
Or these Primo's on Ebay? Wonder if they're any good for DIY mics. They do come prewired, which is less of a hassle..

http://cgi.ebay.com/Primo-Electret-Prewired-Condenser-Microphone-10-Mics_W0QQitemZ180205312379
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Offline Church-Audio

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Re: DIY mics
« Reply #12 on: January 13, 2008, 11:04:46 AM »
Quote from: Nixoo on January 13, 2008, 07:09:09 AM
Or these Primo's on Ebay? Wonder if they're any good for DIY mics. They do come prewired, which is less of a hassle..

http://cgi.ebay.com/Primo-Electret-Prewired-Condenser-Microphone-10-Mics_W0QQitemZ180205312379


The capsules on ebay are cardioid. So you must find a way to house them... Not an easy task but it can be done.

Chris
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Offline Church-Audio

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Re: DIY mics
« Reply #13 on: January 13, 2008, 11:11:10 AM »
Quote from: udovdh on January 13, 2008, 06:40:50 AM
perhaps http://www.primo.com.sg/products.html ?

No actually its this link, http://www.primomic.com/

These are the capsules I use for my pro binaural mics.  EM-123
 
 
Small size
High reliability

Suitable for ultra sound application to 40KHz

 
 
 
  SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Type Electret Condenser 
Directional Non-Directional
 
Sensitivity -43dB@1KHz (0dB=1V/ Pa) RL=2K ohms, Vcc=3V 
Operating Voltage  3V (1.1V~10V)
S/N Ratio 58db
Circuit Current  400µ A max (Vcc=3V)
Impedance 1.6K ohms (1KHz) 
Max Input S.P.L. 120db S.P.L.
Weight 0.2g
 
 
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Offline digifish_music

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Re: DIY mics
« Reply #14 on: January 15, 2008, 07:08:33 AM »
Quote from: Church-Audio on January 13, 2008, 11:11:10 AM
Quote from: udovdh on January 13, 2008, 06:40:50 AM
perhaps http://www.primo.com.sg/products.html ?

No actually its this link, http://www.primomic.com/

These are the capsules I use for my pro binaural mics.  EM-123
 
 
Small size
High reliability

Suitable for ultra sound application to 40KHz

 
 
 
  SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Type Electret Condenser 
Directional Non-Directional
 
Sensitivity -43dB@1KHz (0dB=1V/ Pa) RL=2K ohms, Vcc=3V 
Operating Voltage  3V (1.1V~10V)
S/N Ratio 58db
Circuit Current  400µ A max (Vcc=3V)
Impedance 1.6K ohms (1KHz) 
Max Input S.P.L. 120db S.P.L.
Weight 0.2g
 
 

Thanks, the S/N seems down on the Panasonic caps...but the sensitivity is down on the panasonic too.

http://www.panasonic.com/industrial/components/pdf/em06_wm61_a_b_dne.pdf

Sensitivity -35dB@1KHz (0dB=1V/ Pa) RL=2K ohms, Vcc=3V 
Operating Voltage  2V (2V~10V)
S/N Ratio 68db
Circuit Current  500µ A max (Vcc=3V)
Impedance <2.2 K ohms 

digifish
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