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  • Users: njiruk
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  1. njiruk

    acoustic resistor to upshift an electret microphone maximum SPL

    Hello, At the moment I'm using an (obviously expensive) B&K microphone with a dynamic threshold at 162dB, to be able to measure the acoustic pressure inside a clarinet mouthpiece. As I'm considering to move on to a commercial application I'm trying to find a way to do the same with a cheap...
  2. njiruk

    Common mode choke as a regular inductor (small signals), #inductance?

    Hi, For a specific audio application (see my previous thread http://www.eng-tips.com/viewthread.cfm?qid=341157), I'm considering to use a common mode choke as a regular inductor (this one: http://uk.farnell.com/multicomp/mct25x15x15c-502nu/choke-common-mode-5mh-6a/dp/1864501) as a single...
  3. njiruk

    0.2-2uF cap with lowest ESR, concrete ESR values?

    Hi, I'm looking for a capacitor between 0.2 and 2 uF with ESR as low as possible. Electrolytic polymer capacitor's are not available for such low capacities, and I found several sources stating that ceramic's would have lower ESR. This page...
  4. njiruk

    Quest for an electrovalve acting at audible frequencies

    For a musical acoustic application we would need a very fast linear proportional 2/2 way air electrovalve that acts at audible frequencies with a minimal phase lag. The valve capacity should be at least: 5 l/min, the response time should be smaller than 0.5 ms and hysteresis should be smaller...

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