Searching \ for '[EE]: need help with ECM' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=need+help+with+ecm
Search entire site for: 'need help with ECM'.

Exact match. Not showing close matches.
PICList Thread
'[EE]: need help with ECM'
2002\06\07@171723 by Tal Bejerano - AMC

flavicon
face
Hi

I need a very sensitive amp from condenser microphone to line.

Does anybody have it on hand?

I try to amplify with 2 staged 2N3904 somehow it's amplifying but the result
is not good for me

I need to listen to a room that even a whisper can be recorded.


Thanks

Tal Bejerano
AMC - ISRAEL

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2002\06\07@173207 by Rick C.

flavicon
face
Any op-amp should work. NE5532 is recommended. Use +/- 18v to give you good
headroom.
Rick

Tal Bejerano - AMC wrote:

{Quote hidden}

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2002\06\07@205754 by Dwayne Reid

flavicon
face
At 05:29 PM 6/7/02 -0400, Rick C. wrote:
>Any op-amp should work. NE5532 is recommended. Use +/- 18v to give you good
>headroom.
>Rick
>Tal Bejerano - AMC wrote:
>
> > Hi
> >
> > I need a very sensitive amp from condenser microphone to line.
> >
> > Does anybody have it on hand?

Actually, the single NE5534 is about 10 dB quieter than its dual brother
NE5532.  But an even quieter chip is the LT1028.

dwayne



--
Dwayne Reid   <spam_OUTdwaynerTakeThisOuTspamplanet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

Celebrating 18 years of Engineering Innovation (1984 - 2002)
 .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-
    `-'   `-'   `-'   `-'   `-'   `-'   `-'   `-'   `-'
Do NOT send unsolicited commercial email to this email address.
This message neither grants consent to receive unsolicited
commercial email nor is intended to solicit commercial email.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2002\06\08@085358 by personal

flavicon
face
I will use FET, those isolated kind for first stage! then op.

5532 is too old and not good enough. High voltage I think will bring more
noise.
071   fet   op will be much better choice.


{Original Message removed}

More... (looser matching)
- Last day of these posts
- In 2002 , 2003 only
- Today
- New search...