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23890

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

... Are you positive about it? I haven't seen any specs in the Primo litt. The output impedance is that of a common-drain FET, so it is roughly the inverse of
Jerry Lee Marcel
9:40 AM
#23890
 
23889

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

Thank you so much to all of you for your warm help! I am really learning a lot, and exactly to the point. The theory for this project is more clear now and I
skoulatosm
May 24
#23889
 
23888

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

Markos: I built a stereo fixed gain version of this - no powering for the capsules though, you would have to do this yourself. You are welcome to my boards,
w w
May 24
#23888
 
23887

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

Good old NE5534 (single channel) might also work. Though it has somewhat higher than MAX41X noise, it might be quite acceptable. Remember, it was intended even
Sergei Steshenko
May 24
#23887
 
23886

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

1 Yes. The EM172 needs power too. See the Datasheet. But if you power it from 9V, a 10k (instead of 3k9) is appropriate. 2 You need to make this twice. The
Richard Lee
May 24
#23886
 
23885

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

... I am in Austria. Try www.mouser.de. Mouser is an international company. I think their HQ is Texas. Their European centre is Munich and delivery is very
David Pickett
May 24
#23885
 
23884

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

Thank you Richard and everyone for such a wealth of information. I appreciate a lot to be part in such an active group. I am very glad to see this circuit
skoulatosm
May 24
#23884
 
23883

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

Thanks for the plug Sergei. :) The preamp is LNprimer in my Files directory. You can also power the EM172 from the 9V battery but use a 10k resistor instead of
Richard Lee
May 22
#23883
 
23882

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

I think there is a pretty good Ricardo's circuit around here. Hopefully Ricardo will kick in and give the exact pointer. --Sergei. From: "Jerry Lee Marcel
Sergei Steshenko
May 21
#23882
 
23881

Re: How can I power and amplify "Primo EM-172 capsules" to a line-in

What you need is called a microphone preamplifier. A very important factor is that sounds have a large variation of amplitude; in order to take this into
Jerry Lee Marcel
May 21
#23881
 
23880

How can I power and amplify "Primo EM-172 capsules" to a line-in lev

Hello, I am totally new to the field and want to make a start in amplifying my mic sound. The reason I am posting here is that I am not sure if this is a
skoulatosm
May 21
#23880
 
23879

Re: Peiker Mic/Transound Capsules in Europe

If you can fit a TSB-2555 into the body, you won't be disappointed. I have used these in some of my DIY mics pictured in the Photos section, and have been very
zephyrmic
May 13
#23879
 
23878

Re: Peiker Mic/Transound Capsules in Europe

Yes, this is a good contender, although at 27mm I think it'd be a very tight fit. The frequency response is not the best either. Thanks for the suggestion!
afrbispo
May 12
#23878
 
23877

Re: Peiker Mic/Transound Capsules in Europe

From what I read, the larger capsules are very hard to come buy, and very expensive.
afrbispo
May 12
#23877
 
23876

Re: Peiker Mic/Transound Capsules in Europe

What about Primo? They have a somewhat larger capsule than these available (technically not released yet), might be @20mm, I'm not sure. Excellent specs. Primo
artstype
May 11
#23876
 
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