Finally I got around to destroying a couple of cheapo speakers in the name of better microphones... just wish I'd had one more so I could finish up one ...
Hi There Does anybody of any detailed distortion measurements of the WM capsules? I have seen some near the overload points, >120dB, but wondered if there were...
... the name of ... up one ... pot, and ... my own ... could ... speaker ... it was ... there it ... before I saw ... ended up ... over 125dB. ... speakers so ...
The exact setting of the pot doesn't seem to affect output level any - just as long as it's not too close to the drain voltage it's OK. Need to do more ...
It seems like the J202 is a bit quieter than the 2N4416. The trimpot adjustment to set the gate bias doesn't affect noise at all, though. So basically I'm...
... Sounds pretty good despite whatever may not be there and whatever artifacts there may be because it's an MP3. What encoder and bit rate is the MP3? Bob --...
... So ... reduce ... capacitor is ... really hot ... gain ... noisy, but ... I wouldn't expect the bias to have much effect on the noise or signal level; I...
Bob, The encoder is "BladeEnc" (under Linux), and I encoded at 192kbs. -Scott ... -- ... And you'll visualize not taking any chances But meet them halfway with...
I'm still using 5.6k source/drain resistors - that's another round of testing, to try 2.2k and other values (should be easy enough if I can find a 10k stereo...
Wow - 2.2k is definitely quieter than the 5.6k I'd been using. Different results on the trimpot, too. And... this is the interesting bit... I'm getting much...
I have just returned home from the 117th Convention of the Audio Engineering Society, and while there I visited the Audio Technica booth. The had a number of...
Hey everyone! So, I finally got my second shipment of capsules in the mail, and I promptly finished my second mic. (My intent has been to build a stereo pair...
... Different ... resistors ... I don't see how you can be getting that much voltage across both the drain and source resistors (and since the current is the...
Ah, OK, I think I see what's going on. I'm really measuring across the FET, as opposed to one of the resistors. Must be less ambiguous in the future. ... -- ...
What model capsules are you using? 5.6K is best for the Panasonic and similar capsules... dayVel and I are currently working with some Transound capsules that...
Ah ha - I'm using Panasonic WM-61a's. Oops. Thanks! ... __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com...
... scott@s... ---- (734) 604-9340 ---- Scott, you say that with 2,2K the noise is quieter, but ihave you chequed the output? Is it reduced in the same...
is anyone willing tyo try an fet as a current source, instead of the usual resistors. it should improve headroom. probvably just an fet and a resistor of about...
Good question, but I am taking overall output into account. For this round of noise testing, I'm using my most sensitive but least-calibrated tools, my ears....
... the output? The gain of the phase splitter is not significantly affected by the value of the source and drain resistors (within reason.) The nominal gain...
Hey everyone, I decided to add some links to the links page, and organize it a bit with some folders. Nothing that most of you haven't seen already, but I...
... The distance d is an important parameter in the directional transfer function as is derived in the two papers in our file section for single and dual...
... In a phase splitter with equal resistors, the AC signal across each resistor is the same but of opposite polarity. The gain at the source resistor is unity...
... Since an FET is itself a voltage controled current source, I've always wondered what this idea of driving one with another current source could be about....
... this round ... tools, my ... good ... noises in the ... Back when ... breadboaded, so I ... TSB-55A is ... the same ... and is ... 140A ... there are ... ...
I haven't done anything with the Transound 55 in a few months, but I thought it had better low end than the Panasonic. Got some nice live show recordings -...
Hi Just joined today I have spent the past 6 months over at The Lab trying to figure out how to get started in this Audio electronics thing...(for us 40 year ...
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