Hi all, I'm new to this group and have a few questions about stuff I've seen on here. On Scott's circuit for the modded Pan. capsules, does the 6k8 resistor...
7452
Jim G.
zapnspark
Aug 7, 2007 9:40 pm
For the difference between the 2 and 3 wire source follower linkwitz mods, you might look at the file "FetElectret1.pdf" in the files section under Zapnspark. ...
7453
Scott Helmke
scott_helmke
Aug 8, 2007 12:32 am
Yes, there should be a dot there. Maybe... I didn't have to use any crossovers in that circuit, which would have made it obvious. Anyway, the connection is...
7454
Jim G.
zapnspark
Aug 8, 2007 12:54 am
Look in the Files section under Zapnspark: "IntFETgenericCond.pdf" ZAP ... linkwitz ... anything ... questions....
7455
zog2zog2003
Aug 8, 2007 2:06 am
OK, That sounds good, what is it? Pete ... going to ... bass ... long. ... electronics ... net. ... works ... that ... the ... pin ... to ... goes...
7456
kipsusskrybeletas
kipsusskrybe...
Aug 8, 2007 6:02 am
Okay so it's not a real mic diy topic as I simply bought this: http://www.m-audio.com/products/en_us/Nova-main.html And it's a great mic for the price (each...
7457
krokavadet
Aug 8, 2007 6:08 am
Looking at ZAPNSPARK's file "FetElectret1.pdf" in the files section. What happens to the output level and output impedance while going from c to b (all...
7459
e_motion11
Aug 8, 2007 11:34 am
I can only show you a foto of a very simple shockmount I had made for a mic for my camcorder: http://i39.photobucket.com/albums/e190/kuuan/full.jpg It uses a...
7460
dbly
dbly1850
Aug 13, 2007 12:12 am
I am thinking about building a stereo parabolic dish microphone for long distance recording of animal/nature sounds. Because of the low frequency range, that...
7461
krokavadet
Aug 13, 2007 10:47 am
... long distance recording of animal/nature sounds. Because of the low frequency range, that gets dropped or cut off. I am thinking about using a frequency...
7462
bblack
ktpbeng
Aug 13, 2007 7:12 pm
While I will quickly admit that I do not record outdoors much if at all, it seems to me that most mics need some low frequency rolloff in order to sound...
7463
dbly
dbly1850
Aug 13, 2007 7:29 pm
Thanks Bryan I am recording some wildlife calls and they seem to get spooked, when some large 2-footed mammal Carrying all that equipment, tries to get too...
7464
kennjava
Aug 14, 2007 2:08 am
... long distance recording of animal/nature sounds. Because of the low frequency range, that gets dropped or cut off. I am thinking about using a frequency...
7465
meanpauldean69
Aug 15, 2007 1:50 pm
I built two tape op omni mics and two power supplies. Regardless of the combination of mic and power supply the result is the same. the mic's are very noisy,...
7466
Rich Peet
richpeet
Aug 15, 2007 3:22 pm
There are a number of stereo configurations possible with a parabolic. But this gets long and doesn't answer your question. There are also a number of eq...
7467
Robert Munger
bob98009
Aug 15, 2007 5:04 pm
go to your local electronics store and start by building a few kits getting them to work..you'll learn how to solder and read drawings, not to mention the...
7468
Stefan Avalos
st18901
Aug 15, 2007 5:38 pm
what kind of noise? - buzz, static, whine, very hissy, radio stations? Check to see if you put anything in backwards - especially the mic capsule. It's a real...
7469
meanpauldean69
Aug 15, 2007 6:01 pm
there is definitely buzz which goes away if i hold the power supply case. i'm guessing that's a grounding issue. i thought i wired everything exactly as it...
7470
bad_electronics
Aug 15, 2007 10:51 pm
I still consider myself a begninner, but I've built those mics and they came out sounding nice... The one thing I know I did differently was use a Mylar Cap(it...
7471
Robert Munger
bob98009
Aug 15, 2007 11:01 pm
transfer function! film caps are used for pulse work in many cases in liu of electrolytics because they are fast....all depends on what the guy designing the...
7472
umashankar mantravadi
umashanks
Aug 17, 2007 1:49 am
have posted a couple of photographs of a completed and working sound field microphone. has anyone looked at it yet? this weekend i will do an elementary kind...
7473
jzagaja@...
jzagaja2003
Aug 17, 2007 4:04 pm
Gentleman, Do you know any smd mic preamp for electret that can fit into on-ear hearing aids? I've got Sonion 8002 capsules for check....
7474
Robert Munger
bob98009
Aug 17, 2007 4:37 pm
use two surface mount opamps ... _________________________________________________________________ Tease your brain--play Clink! Win cool prizes! ...
7475
Larry
lrdiver2
Aug 18, 2007 12:04 am
The electrolytic will probably work but you do need to be careful of the polarity. Make sure that the + side of the cap is connected to the preamp connector...
7476
Larry
lrdiver2
Aug 18, 2007 12:58 am
I believe that you want to keep the FET DC load constant. If you were using a 2.2K in circuit C, you would want to change to two 1.1K in circuit B. This would...
7477
Robert Munger
bob98009
Aug 18, 2007 1:11 am
Film capacitors do not have polarity. polypropylene is fist choice, then tantalum, back to back (making a non-polor) then film ... ...
7478
Eric Benjamin
ericbenjamin2
Aug 18, 2007 7:56 am
... What I would do is to simply use a PNP emitter follower. The only data sheet that I have is all screwed up, but it would appear that the 8002 is not...
7479
jzagaja@...
jzagaja2003
Aug 18, 2007 10:03 am
Eric and Robert, Thank you for suggestion. I don't know electronics so only exact parts and schematic can save my life :) Yes this mainly for binaural...
7480
Robert Munger
bob98009
Aug 18, 2007 4:03 pm
look at smd opamps and work a single rail supply. panasonic has them. another thought. look at the toa mic pre modules on ebay ,they use smd parts (salvage) ...
7481
Richard Lee
ricardo_lee
Aug 19, 2007 8:08 am
... tantalum, back to back (making a non-polor) then film DON'T use Tantalums. Especially back-back. They are completely inappropriate and will fail nearly...
