Re: ribbon mic question... ... second ... Well, the part which reads "extend HF response" indeed did. I however, abonded the idea as I did not like the...
Martin, Just a minor quibble with this statement: " -------- more detail which is not a bad thing. The only item that has no modern counterpart is the tube. ...
Zap, what I meant to say that there is no substitute for the VF14 in the U47 circuit. If you redesign the circuit, you have many more options, maybe even...
... Could you explain why this should give extended HF? How are the 2 ribbons connected? ... If you could put some pics of both assemblies in our files, that...
... the ... its ... and a ... Another minor quibble, a JFET is more like a tetrode than triode. I have never seen a mic with the FET operated in the triode...
I was measuring the little output balancing transformer in a Nakamichi CM-300 mic. It looks pretty cheesy sort of like the little 200mW audio output...
... second is right behind)--an attempt to extend HF response. ... ribbons connected? It seems the mechanism of the second ribbon introduction is quite complex...
I've uploaded my latest thoughts on using the charge amplifier principle in microphones. I have actually built the simplest version. It has the "feature" of...
... Interesting points, but you lost me here, please explain why no gain is a problem? Which noise are you thinking about? Sorry if these questions are...
... gain ... mine... :-) ... If you want to take advantage of a 2nV FET in a source follower you still need a sub 2nV amplifier after it. If you take only 12...
... OK, thanks, I see your point now. Otherwise the output level from a larger capsule is just fine as such, but of course 15dB of gain followed by a step-down...
Scott W. Interesting charge amp. design. I'd like to experiment with this circuit myself. A P48 phantom powered version is what I have in mind. Question. Where...
... I can't believe I did that, it's the AD4841-1. You certainly might find other amplifiers that would do, but 2.1nV @ 1.5 mA max is a nice sweet spot in...
Some info here: http://www.prodigy-pro.com/forum/viewtopic.php?t=26083&highlight=442 http://www.prodigy-pro.com/forum/viewtopic.php?t=26579&highlight=442 Bye, ...
... I think the best is a sound sample. Here are a couple tracks from an upcoming commercial CD I recorded a couple years ago. It is MS, with M being a...
... 0.246dB cos basic efficiency of a dynamic unit is directly related to (Bl)^2 / Rdc. Up to another 0.246dB depending on what load the ribbon feeds from...
Re: ribbon mic question... ... same length of corrugated 1.8um foil. The results were 0.139 Ohm vs.0.143 Ohm. Enough to make a couple db difference? ... to...
On a lark I connected a signal generator to a few capsules (FETless) and I was surprised at how easy it was to make audible sound. I know it's obvious but I...
Could you provide more information which voltages are needed for TSB2555 capsules? Anything else? It would be interesting to hear reference transducer with...
Hi all, there's a Sony ECM-909 M/S stereo microphone gathering dust, here, for lack of output level and far too much noise. On the other hand, it's small, neat...
... In the earlier ECM-929, the dematrixing is done by transformer, and I imagine the 909 is similar (though it was always reckoned less good than the 929);...
... is ... I think you mis-understood maybe. I used the capsule as a speaker, as in backwards by applying 10V p-p to it. I don't think it would make much of a...
