Wanted : electret condenser microphone capsules...

List your items for sale, trade, or give away here.
Private party only - NO commercial ads allowed
Post Reply
User avatar
Externet
Posts: 1798
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Wanted : electret condenser microphone capsules...

Post by Externet » Fri Nov 10, 2017 1:48 pm

Hi all. Please check behind your spider webs for any vented electrets. Typical 9.5mm size or low profile; with or without pins/leads.

They look like :
Vented.jpg
vented2.jpg
vented3.png
vented3.png (64.69 KiB) Viewed 1240 times
Miguel
- Abolish the deciBel ! -

User avatar
Janitor Tzap
Posts: 1311
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Janitor Tzap » Sat Nov 18, 2017 12:30 pm

Electronics Goldmine has these:
Image
http://www.goldmine-elec-products.com/p ... ber=G20765


Signed Janitor Tzap

User avatar
Externet
Posts: 1798
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Externet » Sun Nov 19, 2017 5:14 pm

Thanks, Tzap.

The venting is at the connection side. Yours show the perforations at the sound side.

Ordered some but coming from a chinese vendor is a roulette; if they ship exactly what they show pictured or whatever they want.
I do not think they know what they are selling. Should be here in a week and then will have a good or bad surprise with a complain from me.
But for $1.60 a dozen, its worth the gambling... Will see.
- Abolish the deciBel ! -

User avatar
Janitor Tzap
Posts: 1311
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Janitor Tzap » Sun Nov 19, 2017 6:31 pm

Okay,

But I think you've got a longer wait, since they are being shipped from China.
{I was thinking it was going to be at least a month before you'd get them. If you went "FREE SHIPPING".} :razz:

If you just need one, go dumpster diving for a cheap crappy {wired} phone.
Image
Or
An old Cordless Phone.
Image
Just crack it open and grab the condenser mic out of it.


Signed: Janitor Tzap

User avatar
Externet
Posts: 1798
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Externet » Mon Nov 20, 2017 7:40 am

:x Have about 2 dozen from canibalized gadgets and telephones of all sorts, none is vented :cry:

Drilled low the sides of one carefully with 0.40mm holes and still works, seems I did not break anything inside, but unsure the plastic spacer inside got drilled all the way trough. One more week to see if wasted my wait time. :sad:
- Abolish the deciBel ! -

User avatar
Janitor Tzap
Posts: 1311
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Janitor Tzap » Mon Nov 20, 2017 9:19 am

Are you trying to make a "Noise Canceling" circuit?
Or are you wanting to make an Omnidirectional Microphone?

Because the images of capsules you have posted here, are designed just for that type of application.
The Link I put in to Goldmine Electronics of the Panasonic WM-54BT, is a Omnidirectional Microphone.


Signed: Janitor Tzap

User avatar
Externet
Posts: 1798
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Externet » Mon Nov 20, 2017 11:34 am

Do not care about directionality, but the noise cancelling feature does not bother to have.
Building scuba intercoms and pressure at depth would burst the electret film if not vented...
- Abolish the deciBel ! -

User avatar
Externet
Posts: 1798
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Externet » Wed Dec 13, 2017 3:39 pm

Electrets arrived from China last week. As expected, not vented, another idiot vendor and the typical ignorant advertising.
Am drilling the ones I have for the project. Done. Erase the blackboard...
- Abolish the deciBel ! -

User avatar
Janitor Tzap
Posts: 1311
Joined: Sat Aug 12, 2006 5:17 pm
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Janitor Tzap » Thu Dec 14, 2017 12:43 pm

Externet wrote:Electrets arrived from China last week. As expected, not vented, another idiot vendor and the typical ignorant advertising.
Am drilling the ones I have for the project. Done. Erase the blackboard...
This is why I said go look at Electronic Goldmine.
At least they have a Toll free number: 1-800-445-0697.
Thus, you can talk too an actual person, and ask if the mic they have is rear vented.

I personally prefer checking the electronic supply companies in the USA first for an item, before considering getting it from over seas{China}.

I've been burned to many times now too consider purchasing a item off e-bay from a seller in China.


Signed: Janitor tzap

User avatar
Lenp
Posts: 1287
Joined: Thu Oct 26, 2006 8:11 pm
Location: Maryland
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by Lenp » Mon Jan 01, 2018 3:44 pm

Don't know what you paid for the mics, but look at this:
http://www.taydaelectronics.com/microph ... -1-5v.html
$0.25 Ea!
Len

“To invent, you need a good imagination and a big pile of junk.” (T. Edison)
"I must be on the way to success since I already have the junk". (Me)

User avatar
evahle
Posts: 183
Joined: Mon Aug 13, 2007 3:48 am
Contact:

Re: Wanted : electret condenser microphone capsules...

Post by evahle » Thu May 03, 2018 8:13 pm

I like Tayda. I've ordered a few items from them on Ebay. They've been well packaged and the items were excellent and well marked.

Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests